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Finding the Fourth Proportional to 172,652,205.60, 258,978,308.40 and 124,468,221.60

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Solution

The fourth proportional to 172,652,205.60, 258,978,308.40 and 124,468,221.60 is: 186,702,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,652,205.60 : 258,978,308.40 = 124,468,221.60 : x
  2. Step 2: Convert to fraction form
    172,652,205.60/258,978,308.40 = 124,468,221.60/x
  3. Step 3: Cross multiply
    172,652,205.60x = 258,978,308.40 × 124,468,221.60
  4. Step 4: Simplify right side
    172,652,205.60x = 32,234,569,479,524,340
  5. Step 5: Solve for x
    x = 32,234,569,479,524,340/172,652,205.60
  6. Step 6: Final answer
    x = 186,702,332.40

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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.