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Finding the Fourth Proportional to 358,888.93, 538,335.43 and 92,631.24

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Solution

The fourth proportional to 358,888.93, 538,335.43 and 92,631.24 is: 138,947.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,888.93 : 538,335.43 = 92,631.24 : x
  2. Step 2: Convert to fraction form
    358,888.93/538,335.43 = 92,631.24/x
  3. Step 3: Cross multiply
    358,888.93x = 538,335.43 × 92,631.24
  4. Step 4: Simplify right side
    358,888.93x = 49,866,678,185.26
  5. Step 5: Solve for x
    x = 49,866,678,185.26/358,888.93
  6. Step 6: Final answer
    x = 138,947.39

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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.