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Finding the Fourth Proportional to 238,721, 358,081.59 and 61,228.01

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Solution

The fourth proportional to 238,721, 358,081.59 and 61,228.01 is: 91,842.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,721 : 358,081.59 = 61,228.01 : x
  2. Step 2: Convert to fraction form
    238,721/358,081.59 = 61,228.01/x
  3. Step 3: Cross multiply
    238,721x = 358,081.59 × 61,228.01
  4. Step 4: Simplify right side
    238,721x = 21,924,623,173.34
  5. Step 5: Solve for x
    x = 21,924,623,173.34/238,721
  6. Step 6: Final answer
    x = 91,842.04

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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.