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Finding the Fourth Proportional to 92,319.99, 138,424.58 and 42,337.47

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Solution

The fourth proportional to 92,319.99, 138,424.58 and 42,337.47 is: 63,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,319.99 : 138,424.58 = 42,337.47 : x
  2. Step 2: Convert to fraction form
    92,319.99/138,424.58 = 42,337.47/x
  3. Step 3: Cross multiply
    92,319.99x = 138,424.58 × 42,337.47
  4. Step 4: Simplify right side
    92,319.99x = 5,860,546,503.01
  5. Step 5: Solve for x
    x = 5,860,546,503.01/92,319.99
  6. Step 6: Final answer
    x = 63,480.80

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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.