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Finding the Fourth Proportional to 108,658.40, 163,015.32 and 33,779.18

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Solution

The fourth proportional to 108,658.40, 163,015.32 and 33,779.18 is: 50,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,658.40 : 163,015.32 = 33,779.18 : x
  2. Step 2: Convert to fraction form
    108,658.40/163,015.32 = 33,779.18/x
  3. Step 3: Cross multiply
    108,658.40x = 163,015.32 × 33,779.18
  4. Step 4: Simplify right side
    108,658.40x = 5,506,523,837.04
  5. Step 5: Solve for x
    x = 5,506,523,837.04/108,658.40
  6. Step 6: Final answer
    x = 50,677.39

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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.