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Finding the Fourth Proportional to 100,657.90, 150,987.50 and 29,580.24

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Solution

The fourth proportional to 100,657.90, 150,987.50 and 29,580.24 is: 44,370.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,657.90 : 150,987.50 = 29,580.24 : x
  2. Step 2: Convert to fraction form
    100,657.90/150,987.50 = 29,580.24/x
  3. Step 3: Cross multiply
    100,657.90x = 150,987.50 × 29,580.24
  4. Step 4: Simplify right side
    100,657.90x = 4,466,246,487
  5. Step 5: Solve for x
    x = 4,466,246,487/100,657.90
  6. Step 6: Final answer
    x = 44,370.55

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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.