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Finding the Fourth Proportional to 92,122.50, 127,128.96 and 53,908.32

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Solution

The fourth proportional to 92,122.50, 127,128.96 and 53,908.32 is: 74,393.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,122.50 : 127,128.96 = 53,908.32 : x
  2. Step 2: Convert to fraction form
    92,122.50/127,128.96 = 53,908.32/x
  3. Step 3: Cross multiply
    92,122.50x = 127,128.96 × 53,908.32
  4. Step 4: Simplify right side
    92,122.50x = 6,853,308,656.95
  5. Step 5: Solve for x
    x = 6,853,308,656.95/92,122.50
  6. Step 6: Final answer
    x = 74,393.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.