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Finding the Fourth Proportional to 75,652,096.80, 113,478,145.20 and 45,041,095.20

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Solution

The fourth proportional to 75,652,096.80, 113,478,145.20 and 45,041,095.20 is: 67,561,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,652,096.80 : 113,478,145.20 = 45,041,095.20 : x
  2. Step 2: Convert to fraction form
    75,652,096.80/113,478,145.20 = 45,041,095.20/x
  3. Step 3: Cross multiply
    75,652,096.80x = 113,478,145.20 × 45,041,095.20
  4. Step 4: Simplify right side
    75,652,096.80x = 5,111,179,941,072,624
  5. Step 5: Solve for x
    x = 5,111,179,941,072,624/75,652,096.80
  6. Step 6: Final answer
    x = 67,561,642.80

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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.