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Finding the Fourth Proportional to 238,483.17, 357,892.38 and 112,129.20

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Solution

The fourth proportional to 238,483.17, 357,892.38 and 112,129.20 is: 168,272.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,483.17 : 357,892.38 = 112,129.20 : x
  2. Step 2: Convert to fraction form
    238,483.17/357,892.38 = 112,129.20/x
  3. Step 3: Cross multiply
    238,483.17x = 357,892.38 × 112,129.20
  4. Step 4: Simplify right side
    238,483.17x = 40,130,186,255.50
  5. Step 5: Solve for x
    x = 40,130,186,255.50/238,483.17
  6. Step 6: Final answer
    x = 168,272.61

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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.