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Finding the Fourth Proportional to 58,329.40, 87,442.80 and 34,578.40

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Solution

The fourth proportional to 58,329.40, 87,442.80 and 34,578.40 is: 51,837.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,329.40 : 87,442.80 = 34,578.40 : x
  2. Step 2: Convert to fraction form
    58,329.40/87,442.80 = 34,578.40/x
  3. Step 3: Cross multiply
    58,329.40x = 87,442.80 × 34,578.40
  4. Step 4: Simplify right side
    58,329.40x = 3,023,632,115.52
  5. Step 5: Solve for x
    x = 3,023,632,115.52/58,329.40
  6. Step 6: Final answer
    x = 51,837.19

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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.