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Finding the Fourth Proportional to 69,079.60, 103,115.08 and 59,281.84

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Solution

The fourth proportional to 69,079.60, 103,115.08 and 59,281.84 is: 88,489.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,079.60 : 103,115.08 = 59,281.84 : x
  2. Step 2: Convert to fraction form
    69,079.60/103,115.08 = 59,281.84/x
  3. Step 3: Cross multiply
    69,079.60x = 103,115.08 × 59,281.84
  4. Step 4: Simplify right side
    69,079.60x = 6,112,851,674.15
  5. Step 5: Solve for x
    x = 6,112,851,674.15/69,079.60
  6. Step 6: Final answer
    x = 88,489.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.