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Finding the Fourth Proportional to 171,987.87, 257,931.99 and 59,663.55

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Solution

The fourth proportional to 171,987.87, 257,931.99 and 59,663.55 is: 89,478.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,987.87 : 257,931.99 = 59,663.55 : x
  2. Step 2: Convert to fraction form
    171,987.87/257,931.99 = 59,663.55/x
  3. Step 3: Cross multiply
    171,987.87x = 257,931.99 × 59,663.55
  4. Step 4: Simplify right side
    171,987.87x = 15,389,138,181.96
  5. Step 5: Solve for x
    x = 15,389,138,181.96/171,987.87
  6. Step 6: Final answer
    x = 89,478.04

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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.