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Finding the Fourth Proportional to 49,791,709.80, 74,687,564.70 and 15,716,500.20

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Solution

The fourth proportional to 49,791,709.80, 74,687,564.70 and 15,716,500.20 is: 23,574,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,791,709.80 : 74,687,564.70 = 15,716,500.20 : x
  2. Step 2: Convert to fraction form
    49,791,709.80/74,687,564.70 = 15,716,500.20/x
  3. Step 3: Cross multiply
    49,791,709.80x = 74,687,564.70 × 15,716,500.20
  4. Step 4: Simplify right side
    49,791,709.80x = 1,173,827,125,545,063
  5. Step 5: Solve for x
    x = 1,173,827,125,545,063/49,791,709.80
  6. Step 6: Final answer
    x = 23,574,750.30

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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.