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Finding the Fourth Proportional to 93,888.68, 129,569.38 and 51,449.88

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Solution

The fourth proportional to 93,888.68, 129,569.38 and 51,449.88 is: 71,002.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,888.68 : 129,569.38 = 51,449.88 : x
  2. Step 2: Convert to fraction form
    93,888.68/129,569.38 = 51,449.88/x
  3. Step 3: Cross multiply
    93,888.68x = 129,569.38 × 51,449.88
  4. Step 4: Simplify right side
    93,888.68x = 6,666,329,052.67
  5. Step 5: Solve for x
    x = 6,666,329,052.67/93,888.68
  6. Step 6: Final answer
    x = 71,002.48

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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.