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Finding the Fourth Proportional to 78,574.76, 108,444.60 and 44,123.36

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Solution

The fourth proportional to 78,574.76, 108,444.60 and 44,123.36 is: 60,896.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,574.76 : 108,444.60 = 44,123.36 : x
  2. Step 2: Convert to fraction form
    78,574.76/108,444.60 = 44,123.36/x
  3. Step 3: Cross multiply
    78,574.76x = 108,444.60 × 44,123.36
  4. Step 4: Simplify right side
    78,574.76x = 4,784,940,125.86
  5. Step 5: Solve for x
    x = 4,784,940,125.86/78,574.76
  6. Step 6: Final answer
    x = 60,896.66

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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.