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Finding the Fourth Proportional to 108,695.60, 163,043.40 and 61,456.40

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Solution

The fourth proportional to 108,695.60, 163,043.40 and 61,456.40 is: 92,184.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,695.60 : 163,043.40 = 61,456.40 : x
  2. Step 2: Convert to fraction form
    108,695.60/163,043.40 = 61,456.40/x
  3. Step 3: Cross multiply
    108,695.60x = 163,043.40 × 61,456.40
  4. Step 4: Simplify right side
    108,695.60x = 10,020,060,407.76
  5. Step 5: Solve for x
    x = 10,020,060,407.76/108,695.60
  6. Step 6: Final answer
    x = 92,184.60

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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.