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Finding the Fourth Proportional to 110,671.53, 152,722.20 and 65,364.18

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Solution

The fourth proportional to 110,671.53, 152,722.20 and 65,364.18 is: 90,199.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,671.53 : 152,722.20 = 65,364.18 : x
  2. Step 2: Convert to fraction form
    110,671.53/152,722.20 = 65,364.18/x
  3. Step 3: Cross multiply
    110,671.53x = 152,722.20 × 65,364.18
  4. Step 4: Simplify right side
    110,671.53x = 9,982,561,725.11
  5. Step 5: Solve for x
    x = 9,982,561,725.11/110,671.53
  6. Step 6: Final answer
    x = 90,199.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.