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Finding the Fourth Proportional to 53,444,671.80, 80,167,007.70 and 45,791,921.40

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Solution

The fourth proportional to 53,444,671.80, 80,167,007.70 and 45,791,921.40 is: 68,687,882.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,444,671.80 : 80,167,007.70 = 45,791,921.40 : x
  2. Step 2: Convert to fraction form
    53,444,671.80/80,167,007.70 = 45,791,921.40/x
  3. Step 3: Cross multiply
    53,444,671.80x = 80,167,007.70 × 45,791,921.40
  4. Step 4: Simplify right side
    53,444,671.80x = 3,671,001,315,471,595
  5. Step 5: Solve for x
    x = 3,671,001,315,471,595/53,444,671.80
  6. Step 6: Final answer
    x = 68,687,882.10

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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.