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Finding the Fourth Proportional to 127,871.60, 191,807.40 and 124,591.10

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Solution

The fourth proportional to 127,871.60, 191,807.40 and 124,591.10 is: 186,886.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,871.60 : 191,807.40 = 124,591.10 : x
  2. Step 2: Convert to fraction form
    127,871.60/191,807.40 = 124,591.10/x
  3. Step 3: Cross multiply
    127,871.60x = 191,807.40 × 124,591.10
  4. Step 4: Simplify right side
    127,871.60x = 23,897,494,954.14
  5. Step 5: Solve for x
    x = 23,897,494,954.14/127,871.60
  6. Step 6: Final answer
    x = 186,886.65

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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.