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Finding the Fourth Proportional to 60,892,280.80, 91,338,421.20 and 54,845,663.20

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Solution

The fourth proportional to 60,892,280.80, 91,338,421.20 and 54,845,663.20 is: 82,268,494.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,892,280.80 : 91,338,421.20 = 54,845,663.20 : x
  2. Step 2: Convert to fraction form
    60,892,280.80/91,338,421.20 = 54,845,663.20/x
  3. Step 3: Cross multiply
    60,892,280.80x = 91,338,421.20 × 54,845,663.20
  4. Step 4: Simplify right side
    60,892,280.80x = 5,009,516,286,354,940
  5. Step 5: Solve for x
    x = 5,009,516,286,354,940/60,892,280.80
  6. Step 6: Final answer
    x = 82,268,494.80

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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.