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Finding the Fourth Proportional to 168,399,042.20, 235,184,702.80 and 168,399,042.20

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Solution

The fourth proportional to 168,399,042.20, 235,184,702.80 and 168,399,042.20 is: 235,184,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,399,042.20 : 235,184,702.80 = 168,399,042.20 : x
  2. Step 2: Convert to fraction form
    168,399,042.20/235,184,702.80 = 168,399,042.20/x
  3. Step 3: Cross multiply
    168,399,042.20x = 235,184,702.80 × 168,399,042.20
  4. Step 4: Simplify right side
    168,399,042.20x = 39,604,878,691,611,656
  5. Step 5: Solve for x
    x = 39,604,878,691,611,656/168,399,042.20
  6. Step 6: Final answer
    x = 235,184,702.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.