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Finding the Fourth Proportional to 115,810.60, 173,618.70 and 60,406.60

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Solution

The fourth proportional to 115,810.60, 173,618.70 and 60,406.60 is: 90,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,810.60 : 173,618.70 = 60,406.60 : x
  2. Step 2: Convert to fraction form
    115,810.60/173,618.70 = 60,406.60/x
  3. Step 3: Cross multiply
    115,810.60x = 173,618.70 × 60,406.60
  4. Step 4: Simplify right side
    115,810.60x = 10,487,715,363.42
  5. Step 5: Solve for x
    x = 10,487,715,363.42/115,810.60
  6. Step 6: Final answer
    x = 90,559.20

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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.