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Finding the Fourth Proportional to 238,586.86, 357,938.82 and 118,700.38

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Solution

The fourth proportional to 238,586.86, 357,938.82 and 118,700.38 is: 178,079.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,586.86 : 357,938.82 = 118,700.38 : x
  2. Step 2: Convert to fraction form
    238,586.86/357,938.82 = 118,700.38/x
  3. Step 3: Cross multiply
    238,586.86x = 357,938.82 × 118,700.38
  4. Step 4: Simplify right side
    238,586.86x = 42,487,473,950.75
  5. Step 5: Solve for x
    x = 42,487,473,950.75/238,586.86
  6. Step 6: Final answer
    x = 178,079.69

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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.