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Finding the Fourth Proportional to 134,474.60, 201,711.90 and 123,415.40

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Solution

The fourth proportional to 134,474.60, 201,711.90 and 123,415.40 is: 185,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,474.60 : 201,711.90 = 123,415.40 : x
  2. Step 2: Convert to fraction form
    134,474.60/201,711.90 = 123,415.40/x
  3. Step 3: Cross multiply
    134,474.60x = 201,711.90 × 123,415.40
  4. Step 4: Simplify right side
    134,474.60x = 24,894,354,823.26
  5. Step 5: Solve for x
    x = 24,894,354,823.26/134,474.60
  6. Step 6: Final answer
    x = 185,123.10

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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.