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Finding the Fourth Proportional to 157,990.08, 236,828.16 and 64,562.88

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Solution

The fourth proportional to 157,990.08, 236,828.16 and 64,562.88 is: 96,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,990.08 : 236,828.16 = 64,562.88 : x
  2. Step 2: Convert to fraction form
    157,990.08/236,828.16 = 64,562.88/x
  3. Step 3: Cross multiply
    157,990.08x = 236,828.16 × 64,562.88
  4. Step 4: Simplify right side
    157,990.08x = 15,290,308,074.70
  5. Step 5: Solve for x
    x = 15,290,308,074.70/157,990.08
  6. Step 6: Final answer
    x = 96,780.18

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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.