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Finding the Fourth Proportional to 78,366.68, 108,146.10 and 44,374.76

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Solution

The fourth proportional to 78,366.68, 108,146.10 and 44,374.76 is: 61,237.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,366.68 : 108,146.10 = 44,374.76 : x
  2. Step 2: Convert to fraction form
    78,366.68/108,146.10 = 44,374.76/x
  3. Step 3: Cross multiply
    78,366.68x = 108,146.10 × 44,374.76
  4. Step 4: Simplify right side
    78,366.68x = 4,798,957,232.44
  5. Step 5: Solve for x
    x = 4,798,957,232.44/78,366.68
  6. Step 6: Final answer
    x = 61,237.22

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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.