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Finding the Fourth Proportional to 93,721, 129,350.34 and 54,000.04

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Solution

The fourth proportional to 93,721, 129,350.34 and 54,000.04 is: 74,528.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,721 : 129,350.34 = 54,000.04 : x
  2. Step 2: Convert to fraction form
    93,721/129,350.34 = 54,000.04/x
  3. Step 3: Cross multiply
    93,721x = 129,350.34 × 54,000.04
  4. Step 4: Simplify right side
    93,721x = 6,984,923,534.01
  5. Step 5: Solve for x
    x = 6,984,923,534.01/93,721
  6. Step 6: Final answer
    x = 74,528.91

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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.