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Finding the Fourth Proportional to 261,436.68, 392,155 and 182,704.68

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Solution

The fourth proportional to 261,436.68, 392,155 and 182,704.68 is: 274,057.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,436.68 : 392,155 = 182,704.68 : x
  2. Step 2: Convert to fraction form
    261,436.68/392,155 = 182,704.68/x
  3. Step 3: Cross multiply
    261,436.68x = 392,155 × 182,704.68
  4. Step 4: Simplify right side
    261,436.68x = 71,648,553,785.40
  5. Step 5: Solve for x
    x = 71,648,553,785.40/261,436.68
  6. Step 6: Final answer
    x = 274,057.01

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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.