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Finding the Fourth Proportional to 96,264.30, 144,420.78 and 77,712.90

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Solution

The fourth proportional to 96,264.30, 144,420.78 and 77,712.90 is: 116,588.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,264.30 : 144,420.78 = 77,712.90 : x
  2. Step 2: Convert to fraction form
    96,264.30/144,420.78 = 77,712.90/x
  3. Step 3: Cross multiply
    96,264.30x = 144,420.78 × 77,712.90
  4. Step 4: Simplify right side
    96,264.30x = 11,223,357,634.06
  5. Step 5: Solve for x
    x = 11,223,357,634.06/96,264.30
  6. Step 6: Final answer
    x = 116,588.99

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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.