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Finding the Fourth Proportional to 90,687.53, 136,031.13 and 24,127.67

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Solution

The fourth proportional to 90,687.53, 136,031.13 and 24,127.67 is: 36,191.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,687.53 : 136,031.13 = 24,127.67 : x
  2. Step 2: Convert to fraction form
    90,687.53/136,031.13 = 24,127.67/x
  3. Step 3: Cross multiply
    90,687.53x = 136,031.13 × 24,127.67
  4. Step 4: Simplify right side
    90,687.53x = 3,282,113,534.21
  5. Step 5: Solve for x
    x = 3,282,113,534.21/90,687.53
  6. Step 6: Final answer
    x = 36,191.46

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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.