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Finding the Fourth Proportional to 127,374.90, 191,064.15 and 48,493.44

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Solution

The fourth proportional to 127,374.90, 191,064.15 and 48,493.44 is: 72,740.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,374.90 : 191,064.15 = 48,493.44 : x
  2. Step 2: Convert to fraction form
    127,374.90/191,064.15 = 48,493.44/x
  3. Step 3: Cross multiply
    127,374.90x = 191,064.15 × 48,493.44
  4. Step 4: Simplify right side
    127,374.90x = 9,265,357,894.18
  5. Step 5: Solve for x
    x = 9,265,357,894.18/127,374.90
  6. Step 6: Final answer
    x = 72,740.85

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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.