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Finding the Fourth Proportional to 115,502.76, 173,268.72 and 40,605.30

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Solution

The fourth proportional to 115,502.76, 173,268.72 and 40,605.30 is: 60,913.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,502.76 : 173,268.72 = 40,605.30 : x
  2. Step 2: Convert to fraction form
    115,502.76/173,268.72 = 40,605.30/x
  3. Step 3: Cross multiply
    115,502.76x = 173,268.72 × 40,605.30
  4. Step 4: Simplify right side
    115,502.76x = 7,035,628,356.22
  5. Step 5: Solve for x
    x = 7,035,628,356.22/115,502.76
  6. Step 6: Final answer
    x = 60,913.08

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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.