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Finding the Fourth Proportional to 78,961.57, 108,957.42 and 44,970.13

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Solution

The fourth proportional to 78,961.57, 108,957.42 and 44,970.13 is: 62,053.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,961.57 : 108,957.42 = 44,970.13 : x
  2. Step 2: Convert to fraction form
    78,961.57/108,957.42 = 44,970.13/x
  3. Step 3: Cross multiply
    78,961.57x = 108,957.42 × 44,970.13
  4. Step 4: Simplify right side
    78,961.57x = 4,899,829,341.86
  5. Step 5: Solve for x
    x = 4,899,829,341.86/78,961.57
  6. Step 6: Final answer
    x = 62,053.34

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1.5x scale

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.