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Finding the Fourth Proportional to 99,296.69, 137,025.95 and 56,847.02

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Solution

The fourth proportional to 99,296.69, 137,025.95 and 56,847.02 is: 78,446.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,296.69 : 137,025.95 = 56,847.02 : x
  2. Step 2: Convert to fraction form
    99,296.69/137,025.95 = 56,847.02/x
  3. Step 3: Cross multiply
    99,296.69x = 137,025.95 × 56,847.02
  4. Step 4: Simplify right side
    99,296.69x = 7,789,515,950.80
  5. Step 5: Solve for x
    x = 7,789,515,950.80/99,296.69
  6. Step 6: Final answer
    x = 78,446.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.