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Finding the Fourth Proportional to 109,207.70, 163,811.55 and 35,335.70

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Solution

The fourth proportional to 109,207.70, 163,811.55 and 35,335.70 is: 53,003.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,207.70 : 163,811.55 = 35,335.70 : x
  2. Step 2: Convert to fraction form
    109,207.70/163,811.55 = 35,335.70/x
  3. Step 3: Cross multiply
    109,207.70x = 163,811.55 × 35,335.70
  4. Step 4: Simplify right side
    109,207.70x = 5,788,395,787.34
  5. Step 5: Solve for x
    x = 5,788,395,787.34/109,207.70
  6. Step 6: Final answer
    x = 53,003.55

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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.