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Finding the Fourth Proportional to 54,984,691.20, 82,477,036.80 and 54,984,691.20

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Solution

The fourth proportional to 54,984,691.20, 82,477,036.80 and 54,984,691.20 is: 82,477,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,984,691.20 : 82,477,036.80 = 54,984,691.20 : x
  2. Step 2: Convert to fraction form
    54,984,691.20/82,477,036.80 = 54,984,691.20/x
  3. Step 3: Cross multiply
    54,984,691.20x = 82,477,036.80 × 54,984,691.20
  4. Step 4: Simplify right side
    54,984,691.20x = 4,534,974,399,539,036
  5. Step 5: Solve for x
    x = 4,534,974,399,539,036/54,984,691.20
  6. Step 6: Final answer
    x = 82,477,036.80

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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.