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Finding the Fourth Proportional to 283,841.52, 391,703.96 and 156,521.68

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Solution

The fourth proportional to 283,841.52, 391,703.96 and 156,521.68 is: 216,001.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,841.52 : 391,703.96 = 156,521.68 : x
  2. Step 2: Convert to fraction form
    283,841.52/391,703.96 = 156,521.68/x
  3. Step 3: Cross multiply
    283,841.52x = 391,703.96 × 156,521.68
  4. Step 4: Simplify right side
    283,841.52x = 61,310,161,881.85
  5. Step 5: Solve for x
    x = 61,310,161,881.85/283,841.52
  6. Step 6: Final answer
    x = 216,001.39

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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.