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Finding the Fourth Proportional to 92,575.59, 138,751.68 and 42,587.11

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Solution

The fourth proportional to 92,575.59, 138,751.68 and 42,587.11 is: 63,829.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,575.59 : 138,751.68 = 42,587.11 : x
  2. Step 2: Convert to fraction form
    92,575.59/138,751.68 = 42,587.11/x
  3. Step 3: Cross multiply
    92,575.59x = 138,751.68 × 42,587.11
  4. Step 4: Simplify right side
    92,575.59x = 5,909,033,058.84
  5. Step 5: Solve for x
    x = 5,909,033,058.84/92,575.59
  6. Step 6: Final answer
    x = 63,829.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.