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Finding the Fourth Proportional to 104,637.70, 156,956.55 and 73,144.90

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Solution

The fourth proportional to 104,637.70, 156,956.55 and 73,144.90 is: 109,717.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,637.70 : 156,956.55 = 73,144.90 : x
  2. Step 2: Convert to fraction form
    104,637.70/156,956.55 = 73,144.90/x
  3. Step 3: Cross multiply
    104,637.70x = 156,956.55 × 73,144.90
  4. Step 4: Simplify right side
    104,637.70x = 11,480,571,154.10
  5. Step 5: Solve for x
    x = 11,480,571,154.10/104,637.70
  6. Step 6: Final answer
    x = 109,717.35

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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.