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Finding the Fourth Proportional to 358,888.18, 538,334.30 and 92,630.49

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Solution

The fourth proportional to 358,888.18, 538,334.30 and 92,630.49 is: 138,946.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,888.18 : 538,334.30 = 92,630.49 : x
  2. Step 2: Convert to fraction form
    358,888.18/538,334.30 = 92,630.49/x
  3. Step 3: Cross multiply
    358,888.18x = 538,334.30 × 92,630.49
  4. Step 4: Simplify right side
    358,888.18x = 49,866,170,224.38
  5. Step 5: Solve for x
    x = 49,866,170,224.38/358,888.18
  6. Step 6: Final answer
    x = 138,946.26

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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.