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Finding the Fourth Proportional to 93,995.32, 129,713.72 and 53,708.96

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Solution

The fourth proportional to 93,995.32, 129,713.72 and 53,708.96 is: 74,118.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,995.32 : 129,713.72 = 53,708.96 : x
  2. Step 2: Convert to fraction form
    93,995.32/129,713.72 = 53,708.96/x
  3. Step 3: Cross multiply
    93,995.32x = 129,713.72 × 53,708.96
  4. Step 4: Simplify right side
    93,995.32x = 6,966,788,998.93
  5. Step 5: Solve for x
    x = 6,966,788,998.93/93,995.32
  6. Step 6: Final answer
    x = 74,118.47

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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.