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Finding the Fourth Proportional to 124,476,977.20, 186,715,465.80 and 88,126,412.80

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Solution

The fourth proportional to 124,476,977.20, 186,715,465.80 and 88,126,412.80 is: 132,189,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,476,977.20 : 186,715,465.80 = 88,126,412.80 : x
  2. Step 2: Convert to fraction form
    124,476,977.20/186,715,465.80 = 88,126,412.80/x
  3. Step 3: Cross multiply
    124,476,977.20x = 186,715,465.80 × 88,126,412.80
  4. Step 4: Simplify right side
    124,476,977.20x = 16,454,564,215,235,082
  5. Step 5: Solve for x
    x = 16,454,564,215,235,082/124,476,977.20
  6. Step 6: Final answer
    x = 132,189,619.20

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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.