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Finding the Fourth Proportional to 108,247.86, 149,379.48 and 60,505.65

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Solution

The fourth proportional to 108,247.86, 149,379.48 and 60,505.65 is: 83,496.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,247.86 : 149,379.48 = 60,505.65 : x
  2. Step 2: Convert to fraction form
    108,247.86/149,379.48 = 60,505.65/x
  3. Step 3: Cross multiply
    108,247.86x = 149,379.48 × 60,505.65
  4. Step 4: Simplify right side
    108,247.86x = 9,038,302,534.06
  5. Step 5: Solve for x
    x = 9,038,302,534.06/108,247.86
  6. Step 6: Final answer
    x = 83,496.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.