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Finding the Fourth Proportional to 108,886.64, 163,315.08 and 29,989.52

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Solution

The fourth proportional to 108,886.64, 163,315.08 and 29,989.52 is: 44,980.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,886.64 : 163,315.08 = 29,989.52 : x
  2. Step 2: Convert to fraction form
    108,886.64/163,315.08 = 29,989.52/x
  3. Step 3: Cross multiply
    108,886.64x = 163,315.08 × 29,989.52
  4. Step 4: Simplify right side
    108,886.64x = 4,897,740,857.96
  5. Step 5: Solve for x
    x = 4,897,740,857.96/108,886.64
  6. Step 6: Final answer
    x = 44,980.18

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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.