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Finding the Fourth Proportional to 170,870.48, 256,312.70 and 58,627.88

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Solution

The fourth proportional to 170,870.48, 256,312.70 and 58,627.88 is: 87,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,870.48 : 256,312.70 = 58,627.88 : x
  2. Step 2: Convert to fraction form
    170,870.48/256,312.70 = 58,627.88/x
  3. Step 3: Cross multiply
    170,870.48x = 256,312.70 × 58,627.88
  4. Step 4: Simplify right side
    170,870.48x = 15,027,070,218.08
  5. Step 5: Solve for x
    x = 15,027,070,218.08/170,870.48
  6. Step 6: Final answer
    x = 87,944.21

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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.