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Finding the Fourth Proportional to 144,240.86, 216,351.56 and 61,134.86

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Solution

The fourth proportional to 144,240.86, 216,351.56 and 61,134.86 is: 91,698.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,240.86 : 216,351.56 = 61,134.86 : x
  2. Step 2: Convert to fraction form
    144,240.86/216,351.56 = 61,134.86/x
  3. Step 3: Cross multiply
    144,240.86x = 216,351.56 × 61,134.86
  4. Step 4: Simplify right side
    144,240.86x = 13,226,622,331.38
  5. Step 5: Solve for x
    x = 13,226,622,331.38/144,240.86
  6. Step 6: Final answer
    x = 91,698.17

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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.