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Finding the Fourth Proportional to 163,403.20, 245,104.80 and 104,062.60

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Solution

The fourth proportional to 163,403.20, 245,104.80 and 104,062.60 is: 156,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,403.20 : 245,104.80 = 104,062.60 : x
  2. Step 2: Convert to fraction form
    163,403.20/245,104.80 = 104,062.60/x
  3. Step 3: Cross multiply
    163,403.20x = 245,104.80 × 104,062.60
  4. Step 4: Simplify right side
    163,403.20x = 25,506,242,760.48
  5. Step 5: Solve for x
    x = 25,506,242,760.48/163,403.20
  6. Step 6: Final answer
    x = 156,093.90

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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.