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Finding the Fourth Proportional to 60,659,471.80, 90,989,207.70 and 49,888,934.20

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Solution

The fourth proportional to 60,659,471.80, 90,989,207.70 and 49,888,934.20 is: 74,833,401.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,659,471.80 : 90,989,207.70 = 49,888,934.20 : x
  2. Step 2: Convert to fraction form
    60,659,471.80/90,989,207.70 = 49,888,934.20/x
  3. Step 3: Cross multiply
    60,659,471.80x = 90,989,207.70 × 49,888,934.20
  4. Step 4: Simplify right side
    60,659,471.80x = 4,539,354,595,855,434
  5. Step 5: Solve for x
    x = 4,539,354,595,855,434/60,659,471.80
  6. Step 6: Final answer
    x = 74,833,401.30

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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.