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Finding the Fourth Proportional to 172,439.96, 237,987.86 and 104,454.94

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Solution

The fourth proportional to 172,439.96, 237,987.86 and 104,454.94 is: 144,160.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,439.96 : 237,987.86 = 104,454.94 : x
  2. Step 2: Convert to fraction form
    172,439.96/237,987.86 = 104,454.94/x
  3. Step 3: Cross multiply
    172,439.96x = 237,987.86 × 104,454.94
  4. Step 4: Simplify right side
    172,439.96x = 24,859,007,303.20
  5. Step 5: Solve for x
    x = 24,859,007,303.20/172,439.96
  6. Step 6: Final answer
    x = 144,160.36

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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.