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Finding the Fourth Proportional to 238,988.48, 358,534.76 and 72,772.16

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Solution

The fourth proportional to 238,988.48, 358,534.76 and 72,772.16 is: 109,174.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,988.48 : 358,534.76 = 72,772.16 : x
  2. Step 2: Convert to fraction form
    238,988.48/358,534.76 = 72,772.16/x
  3. Step 3: Cross multiply
    238,988.48x = 358,534.76 × 72,772.16
  4. Step 4: Simplify right side
    238,988.48x = 26,091,348,920.28
  5. Step 5: Solve for x
    x = 26,091,348,920.28/238,988.48
  6. Step 6: Final answer
    x = 109,174.09

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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.