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Finding the Fourth Proportional to 238,514.80, 357,769.68 and 61,020.40

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Solution

The fourth proportional to 238,514.80, 357,769.68 and 61,020.40 is: 91,529.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,514.80 : 357,769.68 = 61,020.40 : x
  2. Step 2: Convert to fraction form
    238,514.80/357,769.68 = 61,020.40/x
  3. Step 3: Cross multiply
    238,514.80x = 357,769.68 × 61,020.40
  4. Step 4: Simplify right side
    238,514.80x = 21,831,248,981.47
  5. Step 5: Solve for x
    x = 21,831,248,981.47/238,514.80
  6. Step 6: Final answer
    x = 91,529.96

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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.