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Finding the Fourth Proportional to 113,043.60, 169,565.40 and 53,994.60

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Solution

The fourth proportional to 113,043.60, 169,565.40 and 53,994.60 is: 80,991.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,043.60 : 169,565.40 = 53,994.60 : x
  2. Step 2: Convert to fraction form
    113,043.60/169,565.40 = 53,994.60/x
  3. Step 3: Cross multiply
    113,043.60x = 169,565.40 × 53,994.60
  4. Step 4: Simplify right side
    113,043.60x = 9,155,615,946.84
  5. Step 5: Solve for x
    x = 9,155,615,946.84/113,043.60
  6. Step 6: Final answer
    x = 80,991.90

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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.