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Finding the Fourth Proportional to 186,689,975.60, 280,034,963.40 and 50,375,140.40

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Solution

The fourth proportional to 186,689,975.60, 280,034,963.40 and 50,375,140.40 is: 75,562,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,689,975.60 : 280,034,963.40 = 50,375,140.40 : x
  2. Step 2: Convert to fraction form
    186,689,975.60/280,034,963.40 = 50,375,140.40/x
  3. Step 3: Cross multiply
    186,689,975.60x = 280,034,963.40 × 50,375,140.40
  4. Step 4: Simplify right side
    186,689,975.60x = 14,106,800,598,183,860
  5. Step 5: Solve for x
    x = 14,106,800,598,183,860/186,689,975.60
  6. Step 6: Final answer
    x = 75,562,710.60

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1.5x scale

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.