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Finding the Fourth Proportional to 95,598.50, 131,920.80 and 55,312.92

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Solution

The fourth proportional to 95,598.50, 131,920.80 and 55,312.92 is: 76,328.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,598.50 : 131,920.80 = 55,312.92 : x
  2. Step 2: Convert to fraction form
    95,598.50/131,920.80 = 55,312.92/x
  3. Step 3: Cross multiply
    95,598.50x = 131,920.80 × 55,312.92
  4. Step 4: Simplify right side
    95,598.50x = 7,296,924,656.74
  5. Step 5: Solve for x
    x = 7,296,924,656.74/95,598.50
  6. Step 6: Final answer
    x = 76,328.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.