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Finding the Fourth Proportional to 172,439.70, 237,987.50 and 104,454.68

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Solution

The fourth proportional to 172,439.70, 237,987.50 and 104,454.68 is: 144,160.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,439.70 : 237,987.50 = 104,454.68 : x
  2. Step 2: Convert to fraction form
    172,439.70/237,987.50 = 104,454.68/x
  3. Step 3: Cross multiply
    172,439.70x = 237,987.50 × 104,454.68
  4. Step 4: Simplify right side
    172,439.70x = 24,858,908,156.50
  5. Step 5: Solve for x
    x = 24,858,908,156.50/172,439.70
  6. Step 6: Final answer
    x = 144,160.01

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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.