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Finding the Fourth Proportional to 186,689,967.60, 280,034,951.40 and 50,375,132.40

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Solution

The fourth proportional to 186,689,967.60, 280,034,951.40 and 50,375,132.40 is: 75,562,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,689,967.60 : 280,034,951.40 = 50,375,132.40 : x
  2. Step 2: Convert to fraction form
    186,689,967.60/280,034,951.40 = 50,375,132.40/x
  3. Step 3: Cross multiply
    186,689,967.60x = 280,034,951.40 × 50,375,132.40
  4. Step 4: Simplify right side
    186,689,967.60x = 14,106,797,753,402,564
  5. Step 5: Solve for x
    x = 14,106,797,753,402,564/186,689,967.60
  6. Step 6: Final answer
    x = 75,562,698.60

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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.