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Finding the Fourth Proportional to 362,365.68, 543,213.18 and 137,658.72

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Solution

The fourth proportional to 362,365.68, 543,213.18 and 137,658.72 is: 206,360.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,365.68 : 543,213.18 = 137,658.72 : x
  2. Step 2: Convert to fraction form
    362,365.68/543,213.18 = 137,658.72/x
  3. Step 3: Cross multiply
    362,365.68x = 543,213.18 × 137,658.72
  4. Step 4: Simplify right side
    362,365.68x = 74,778,031,045.93
  5. Step 5: Solve for x
    x = 74,778,031,045.93/362,365.68
  6. Step 6: Final answer
    x = 206,360.69

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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.