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Finding the Fourth Proportional to 127,190.66, 190,785.98 and 48,304.89

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Solution

The fourth proportional to 127,190.66, 190,785.98 and 48,304.89 is: 72,457.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,190.66 : 190,785.98 = 48,304.89 : x
  2. Step 2: Convert to fraction form
    127,190.66/190,785.98 = 48,304.89/x
  3. Step 3: Cross multiply
    127,190.66x = 190,785.98 × 48,304.89
  4. Step 4: Simplify right side
    127,190.66x = 9,215,895,898.20
  5. Step 5: Solve for x
    x = 9,215,895,898.20/127,190.66
  6. Step 6: Final answer
    x = 72,457.34

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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.