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Finding the Fourth Proportional to 108,879.72, 163,176.18 and 101,776.86

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Solution

The fourth proportional to 108,879.72, 163,176.18 and 101,776.86 is: 152,531.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,879.72 : 163,176.18 = 101,776.86 : x
  2. Step 2: Convert to fraction form
    108,879.72/163,176.18 = 101,776.86/x
  3. Step 3: Cross multiply
    108,879.72x = 163,176.18 × 101,776.86
  4. Step 4: Simplify right side
    108,879.72x = 16,607,559,227.19
  5. Step 5: Solve for x
    x = 16,607,559,227.19/108,879.72
  6. Step 6: Final answer
    x = 152,531.24

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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.