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Finding the Fourth Proportional to 93,891.04, 129,568.92 and 51,449.48

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Solution

The fourth proportional to 93,891.04, 129,568.92 and 51,449.48 is: 70,999.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,891.04 : 129,568.92 = 51,449.48 : x
  2. Step 2: Convert to fraction form
    93,891.04/129,568.92 = 51,449.48/x
  3. Step 3: Cross multiply
    93,891.04x = 129,568.92 × 51,449.48
  4. Step 4: Simplify right side
    93,891.04x = 6,666,253,558.16
  5. Step 5: Solve for x
    x = 6,666,253,558.16/93,891.04
  6. Step 6: Final answer
    x = 70,999.89

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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.