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Finding the Fourth Proportional to 127,374.65, 191,063.80 and 48,493.20

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Solution

The fourth proportional to 127,374.65, 191,063.80 and 48,493.20 is: 72,740.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,374.65 : 191,063.80 = 48,493.20 : x
  2. Step 2: Convert to fraction form
    127,374.65/191,063.80 = 48,493.20/x
  3. Step 3: Cross multiply
    127,374.65x = 191,063.80 × 48,493.20
  4. Step 4: Simplify right side
    127,374.65x = 9,265,295,066.16
  5. Step 5: Solve for x
    x = 9,265,295,066.16/127,374.65
  6. Step 6: Final answer
    x = 72,740.50

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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.