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Finding the Fourth Proportional to 284,001.03, 391,902.03 and 156,678.75

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Solution

The fourth proportional to 284,001.03, 391,902.03 and 156,678.75 is: 216,205.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,001.03 : 391,902.03 = 156,678.75 : x
  2. Step 2: Convert to fraction form
    284,001.03/391,902.03 = 156,678.75/x
  3. Step 3: Cross multiply
    284,001.03x = 391,902.03 × 156,678.75
  4. Step 4: Simplify right side
    284,001.03x = 61,402,720,182.86
  5. Step 5: Solve for x
    x = 61,402,720,182.86/284,001.03
  6. Step 6: Final answer
    x = 216,205.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.