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Finding the Fourth Proportional to 71,354.16, 98,479.08 and 43,063.92

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Solution

The fourth proportional to 71,354.16, 98,479.08 and 43,063.92 is: 59,434.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,354.16 : 98,479.08 = 43,063.92 : x
  2. Step 2: Convert to fraction form
    71,354.16/98,479.08 = 43,063.92/x
  3. Step 3: Cross multiply
    71,354.16x = 98,479.08 × 43,063.92
  4. Step 4: Simplify right side
    71,354.16x = 4,240,895,222.79
  5. Step 5: Solve for x
    x = 4,240,895,222.79/71,354.16
  6. Step 6: Final answer
    x = 59,434.45

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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.