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Finding the Fourth Proportional to 108,574.04, 149,820.08 and 63,242.54

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Solution

The fourth proportional to 108,574.04, 149,820.08 and 63,242.54 is: 87,267.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,574.04 : 149,820.08 = 63,242.54 : x
  2. Step 2: Convert to fraction form
    108,574.04/149,820.08 = 63,242.54/x
  3. Step 3: Cross multiply
    108,574.04x = 149,820.08 × 63,242.54
  4. Step 4: Simplify right side
    108,574.04x = 9,475,002,085.99
  5. Step 5: Solve for x
    x = 9,475,002,085.99/108,574.04
  6. Step 6: Final answer
    x = 87,267.66

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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.