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Finding the Fourth Proportional to 109,045.80, 163,568.70 and 102,594.60

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Solution

The fourth proportional to 109,045.80, 163,568.70 and 102,594.60 is: 153,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,045.80 : 163,568.70 = 102,594.60 : x
  2. Step 2: Convert to fraction form
    109,045.80/163,568.70 = 102,594.60/x
  3. Step 3: Cross multiply
    109,045.80x = 163,568.70 × 102,594.60
  4. Step 4: Simplify right side
    109,045.80x = 16,781,265,349.02
  5. Step 5: Solve for x
    x = 16,781,265,349.02/109,045.80
  6. Step 6: Final answer
    x = 153,891.90

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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.