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Finding the Fourth Proportional to 108,663.40, 163,023.90 and 38,535.40

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Solution

The fourth proportional to 108,663.40, 163,023.90 and 38,535.40 is: 57,813.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,663.40 : 163,023.90 = 38,535.40 : x
  2. Step 2: Convert to fraction form
    108,663.40/163,023.90 = 38,535.40/x
  3. Step 3: Cross multiply
    108,663.40x = 163,023.90 × 38,535.40
  4. Step 4: Simplify right side
    108,663.40x = 6,282,191,196.06
  5. Step 5: Solve for x
    x = 6,282,191,196.06/108,663.40
  6. Step 6: Final answer
    x = 57,813.31

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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.