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Finding the Fourth Proportional to 159,370.50, 219,931.29 and 88,714.50

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Solution

The fourth proportional to 159,370.50, 219,931.29 and 88,714.50 is: 122,426.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,370.50 : 219,931.29 = 88,714.50 : x
  2. Step 2: Convert to fraction form
    159,370.50/219,931.29 = 88,714.50/x
  3. Step 3: Cross multiply
    159,370.50x = 219,931.29 × 88,714.50
  4. Step 4: Simplify right side
    159,370.50x = 19,511,094,426.71
  5. Step 5: Solve for x
    x = 19,511,094,426.71/159,370.50
  6. Step 6: Final answer
    x = 122,426.01

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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.