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Finding the Fourth Proportional to 159,213.74, 219,714.95 and 87,592.22

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Solution

The fourth proportional to 159,213.74, 219,714.95 and 87,592.22 is: 120,877.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,213.74 : 219,714.95 = 87,592.22 : x
  2. Step 2: Convert to fraction form
    159,213.74/219,714.95 = 87,592.22/x
  3. Step 3: Cross multiply
    159,213.74x = 219,714.95 × 87,592.22
  4. Step 4: Simplify right side
    159,213.74x = 19,245,319,689.32
  5. Step 5: Solve for x
    x = 19,245,319,689.32/159,213.74
  6. Step 6: Final answer
    x = 120,877.26

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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.