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Finding the Fourth Proportional to 79,442.86, 109,702.36 and 59,264.70

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Solution

The fourth proportional to 79,442.86, 109,702.36 and 59,264.70 is: 81,838.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,442.86 : 109,702.36 = 59,264.70 : x
  2. Step 2: Convert to fraction form
    79,442.86/109,702.36 = 59,264.70/x
  3. Step 3: Cross multiply
    79,442.86x = 109,702.36 × 59,264.70
  4. Step 4: Simplify right side
    79,442.86x = 6,501,477,454.69
  5. Step 5: Solve for x
    x = 6,501,477,454.69/79,442.86
  6. Step 6: Final answer
    x = 81,838.41

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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.