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Finding the Fourth Proportional to 108,866.97, 163,310.79 and 42,312.24

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Solution

The fourth proportional to 108,866.97, 163,310.79 and 42,312.24 is: 63,472.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,866.97 : 163,310.79 = 42,312.24 : x
  2. Step 2: Convert to fraction form
    108,866.97/163,310.79 = 42,312.24/x
  3. Step 3: Cross multiply
    108,866.97x = 163,310.79 × 42,312.24
  4. Step 4: Simplify right side
    108,866.97x = 6,910,045,341.07
  5. Step 5: Solve for x
    x = 6,910,045,341.07/108,866.97
  6. Step 6: Final answer
    x = 63,472.38

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1.5x scale

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.