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Finding the Fourth Proportional to 104,442.59, 144,130.95 and 56,695.97

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Solution

The fourth proportional to 104,442.59, 144,130.95 and 56,695.97 is: 78,240.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,442.59 : 144,130.95 = 56,695.97 : x
  2. Step 2: Convert to fraction form
    104,442.59/144,130.95 = 56,695.97/x
  3. Step 3: Cross multiply
    104,442.59x = 144,130.95 × 56,695.97
  4. Step 4: Simplify right side
    104,442.59x = 8,171,643,296.62
  5. Step 5: Solve for x
    x = 8,171,643,296.62/104,442.59
  6. Step 6: Final answer
    x = 78,240.53

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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.