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Finding the Fourth Proportional to 238,587.48, 357,658.74 and 80,706.06

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Solution

The fourth proportional to 238,587.48, 357,658.74 and 80,706.06 is: 120,983.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,587.48 : 357,658.74 = 80,706.06 : x
  2. Step 2: Convert to fraction form
    238,587.48/357,658.74 = 80,706.06/x
  3. Step 3: Cross multiply
    238,587.48x = 357,658.74 × 80,706.06
  4. Step 4: Simplify right side
    238,587.48x = 28,865,227,729.96
  5. Step 5: Solve for x
    x = 28,865,227,729.96/238,587.48
  6. Step 6: Final answer
    x = 120,983.83

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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.