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Finding the Fourth Proportional to 93,843.28, 129,506.88 and 51,404.20

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Solution

The fourth proportional to 93,843.28, 129,506.88 and 51,404.20 is: 70,939.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,843.28 : 129,506.88 = 51,404.20 : x
  2. Step 2: Convert to fraction form
    93,843.28/129,506.88 = 51,404.20/x
  3. Step 3: Cross multiply
    93,843.28x = 129,506.88 × 51,404.20
  4. Step 4: Simplify right side
    93,843.28x = 6,657,197,560.90
  5. Step 5: Solve for x
    x = 6,657,197,560.90/93,843.28
  6. Step 6: Final answer
    x = 70,939.52

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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.