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Finding the Fourth Proportional to 108,859.52, 163,299.59 and 42,304.79

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Solution

The fourth proportional to 108,859.52, 163,299.59 and 42,304.79 is: 63,461.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,859.52 : 163,299.59 = 42,304.79 : x
  2. Step 2: Convert to fraction form
    108,859.52/163,299.59 = 42,304.79/x
  3. Step 3: Cross multiply
    108,859.52x = 163,299.59 × 42,304.79
  4. Step 4: Simplify right side
    108,859.52x = 6,908,354,862.04
  5. Step 5: Solve for x
    x = 6,908,354,862.04/108,859.52
  6. Step 6: Final answer
    x = 63,461.19

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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.