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Finding the Fourth Proportional to 115,590.90, 173,127.15 and 94,854.90

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Solution

The fourth proportional to 115,590.90, 173,127.15 and 94,854.90 is: 142,069.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,590.90 : 173,127.15 = 94,854.90 : x
  2. Step 2: Convert to fraction form
    115,590.90/173,127.15 = 94,854.90/x
  3. Step 3: Cross multiply
    115,590.90x = 173,127.15 × 94,854.90
  4. Step 4: Simplify right side
    115,590.90x = 16,421,958,500.54
  5. Step 5: Solve for x
    x = 16,421,958,500.54/115,590.90
  6. Step 6: Final answer
    x = 142,069.65

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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.