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Finding the Fourth Proportional to 127,251.64, 190,877.46 and 48,347.20

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Solution

The fourth proportional to 127,251.64, 190,877.46 and 48,347.20 is: 72,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,251.64 : 190,877.46 = 48,347.20 : x
  2. Step 2: Convert to fraction form
    127,251.64/190,877.46 = 48,347.20/x
  3. Step 3: Cross multiply
    127,251.64x = 190,877.46 × 48,347.20
  4. Step 4: Simplify right side
    127,251.64x = 9,228,390,734.11
  5. Step 5: Solve for x
    x = 9,228,390,734.11/127,251.64
  6. Step 6: Final answer
    x = 72,520.80

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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.