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Finding the Fourth Proportional to 71,475.84, 98,346.96 and 58,681.89

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Solution

The fourth proportional to 71,475.84, 98,346.96 and 58,681.89 is: 80,743.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,475.84 : 98,346.96 = 58,681.89 : x
  2. Step 2: Convert to fraction form
    71,475.84/98,346.96 = 58,681.89/x
  3. Step 3: Cross multiply
    71,475.84x = 98,346.96 × 58,681.89
  4. Step 4: Simplify right side
    71,475.84x = 5,771,185,488.55
  5. Step 5: Solve for x
    x = 5,771,185,488.55/71,475.84
  6. Step 6: Final answer
    x = 80,743.16

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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.