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Finding the Fourth Proportional to 238,291.65, 356,893.10 and 113,720.13

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Solution

The fourth proportional to 238,291.65, 356,893.10 and 113,720.13 is: 170,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,291.65 : 356,893.10 = 113,720.13 : x
  2. Step 2: Convert to fraction form
    238,291.65/356,893.10 = 113,720.13/x
  3. Step 3: Cross multiply
    238,291.65x = 356,893.10 × 113,720.13
  4. Step 4: Simplify right side
    238,291.65x = 40,585,929,159.50
  5. Step 5: Solve for x
    x = 40,585,929,159.50/238,291.65
  6. Step 6: Final answer
    x = 170,320.40

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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.