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Finding the Fourth Proportional to 109,056.80, 163,585.20 and 94,023.20

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Solution

The fourth proportional to 109,056.80, 163,585.20 and 94,023.20 is: 141,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,056.80 : 163,585.20 = 94,023.20 : x
  2. Step 2: Convert to fraction form
    109,056.80/163,585.20 = 94,023.20/x
  3. Step 3: Cross multiply
    109,056.80x = 163,585.20 × 94,023.20
  4. Step 4: Simplify right side
    109,056.80x = 15,380,803,976.64
  5. Step 5: Solve for x
    x = 15,380,803,976.64/109,056.80
  6. Step 6: Final answer
    x = 141,034.80

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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.