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Finding the Fourth Proportional to 292,436.20, 439,115.10 and 168,020.20

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Solution

The fourth proportional to 292,436.20, 439,115.10 and 168,020.20 is: 252,295.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,436.20 : 439,115.10 = 168,020.20 : x
  2. Step 2: Convert to fraction form
    292,436.20/439,115.10 = 168,020.20/x
  3. Step 3: Cross multiply
    292,436.20x = 439,115.10 × 168,020.20
  4. Step 4: Simplify right side
    292,436.20x = 73,780,206,925.02
  5. Step 5: Solve for x
    x = 73,780,206,925.02/292,436.20
  6. Step 6: Final answer
    x = 252,295.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.