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Finding the Fourth Proportional to 124,079.88, 171,239.16 and 70,369.56

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Solution

The fourth proportional to 124,079.88, 171,239.16 and 70,369.56 is: 97,115.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,079.88 : 171,239.16 = 70,369.56 : x
  2. Step 2: Convert to fraction form
    124,079.88/171,239.16 = 70,369.56/x
  3. Step 3: Cross multiply
    124,079.88x = 171,239.16 × 70,369.56
  4. Step 4: Simplify right side
    124,079.88x = 12,050,024,343.97
  5. Step 5: Solve for x
    x = 12,050,024,343.97/124,079.88
  6. Step 6: Final answer
    x = 97,115.05

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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.