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Finding the Fourth Proportional to 358,570.65, 537,856.34 and 92,331.75

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Solution

The fourth proportional to 358,570.65, 537,856.34 and 92,331.75 is: 138,497.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,570.65 : 537,856.34 = 92,331.75 : x
  2. Step 2: Convert to fraction form
    358,570.65/537,856.34 = 92,331.75/x
  3. Step 3: Cross multiply
    358,570.65x = 537,856.34 × 92,331.75
  4. Step 4: Simplify right side
    358,570.65x = 49,661,216,659.14
  5. Step 5: Solve for x
    x = 49,661,216,659.14/358,570.65
  6. Step 6: Final answer
    x = 138,497.72

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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.