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Finding the Fourth Proportional to 238,652.01, 357,959.28 and 138,748.50

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Solution

The fourth proportional to 238,652.01, 357,959.28 and 138,748.50 is: 208,111.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,652.01 : 357,959.28 = 138,748.50 : x
  2. Step 2: Convert to fraction form
    238,652.01/357,959.28 = 138,748.50/x
  3. Step 3: Cross multiply
    238,652.01x = 357,959.28 × 138,748.50
  4. Step 4: Simplify right side
    238,652.01x = 49,666,313,161.08
  5. Step 5: Solve for x
    x = 49,666,313,161.08/238,652.01
  6. Step 6: Final answer
    x = 208,111.86

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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.