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Finding the Fourth Proportional to 104,456.80, 144,150.48 and 56,710.12

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Solution

The fourth proportional to 104,456.80, 144,150.48 and 56,710.12 is: 78,260.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,456.80 : 144,150.48 = 56,710.12 : x
  2. Step 2: Convert to fraction form
    104,456.80/144,150.48 = 56,710.12/x
  3. Step 3: Cross multiply
    104,456.80x = 144,150.48 × 56,710.12
  4. Step 4: Simplify right side
    104,456.80x = 8,174,791,018.86
  5. Step 5: Solve for x
    x = 8,174,791,018.86/104,456.80
  6. Step 6: Final answer
    x = 78,260.02

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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.