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Finding the Fourth Proportional to 238,984.88, 358,477.31 and 72,772.88

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Solution

The fourth proportional to 238,984.88, 358,477.31 and 72,772.88 is: 109,159.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,984.88 : 358,477.31 = 72,772.88 : x
  2. Step 2: Convert to fraction form
    238,984.88/358,477.31 = 72,772.88/x
  3. Step 3: Cross multiply
    238,984.88x = 358,477.31 × 72,772.88
  4. Step 4: Simplify right side
    238,984.88x = 26,087,424,652.90
  5. Step 5: Solve for x
    x = 26,087,424,652.90/238,984.88
  6. Step 6: Final answer
    x = 109,159.31

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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.