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Finding the Fourth Proportional to 113,532.90, 170,376.15 and 63,612.90

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Solution

The fourth proportional to 113,532.90, 170,376.15 and 63,612.90 is: 95,462.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,532.90 : 170,376.15 = 63,612.90 : x
  2. Step 2: Convert to fraction form
    113,532.90/170,376.15 = 63,612.90/x
  3. Step 3: Cross multiply
    113,532.90x = 170,376.15 × 63,612.90
  4. Step 4: Simplify right side
    113,532.90x = 10,838,120,992.34
  5. Step 5: Solve for x
    x = 10,838,120,992.34/113,532.90
  6. Step 6: Final answer
    x = 95,462.38

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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.