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Finding the Fourth Proportional to 77,603.52, 116,264.32 and 59,862.72

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Solution

The fourth proportional to 77,603.52, 116,264.32 and 59,862.72 is: 89,685.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,603.52 : 116,264.32 = 59,862.72 : x
  2. Step 2: Convert to fraction form
    77,603.52/116,264.32 = 59,862.72/x
  3. Step 3: Cross multiply
    77,603.52x = 116,264.32 × 59,862.72
  4. Step 4: Simplify right side
    77,603.52x = 6,959,898,434.15
  5. Step 5: Solve for x
    x = 6,959,898,434.15/77,603.52
  6. Step 6: Final answer
    x = 89,685.34

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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.