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Finding the Fourth Proportional to 100,724.35, 151,070.10 and 29,630.36

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Solution

The fourth proportional to 100,724.35, 151,070.10 and 29,630.36 is: 44,440.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,724.35 : 151,070.10 = 29,630.36 : x
  2. Step 2: Convert to fraction form
    100,724.35/151,070.10 = 29,630.36/x
  3. Step 3: Cross multiply
    100,724.35x = 151,070.10 × 29,630.36
  4. Step 4: Simplify right side
    100,724.35x = 4,476,260,618.81
  5. Step 5: Solve for x
    x = 4,476,260,618.81/100,724.35
  6. Step 6: Final answer
    x = 44,440.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.