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Finding the Fourth Proportional to 342,381.12, 513,570.24 and 93,062.40

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Solution

The fourth proportional to 342,381.12, 513,570.24 and 93,062.40 is: 139,593.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,381.12 : 513,570.24 = 93,062.40 : x
  2. Step 2: Convert to fraction form
    342,381.12/513,570.24 = 93,062.40/x
  3. Step 3: Cross multiply
    342,381.12x = 513,570.24 × 93,062.40
  4. Step 4: Simplify right side
    342,381.12x = 47,794,079,102.98
  5. Step 5: Solve for x
    x = 47,794,079,102.98/342,381.12
  6. Step 6: Final answer
    x = 139,593.21

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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.