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Finding the Fourth Proportional to 171,648.96, 236,903.04 and 100,070.88

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Solution

The fourth proportional to 171,648.96, 236,903.04 and 100,070.88 is: 138,113.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,648.96 : 236,903.04 = 100,070.88 : x
  2. Step 2: Convert to fraction form
    171,648.96/236,903.04 = 100,070.88/x
  3. Step 3: Cross multiply
    171,648.96x = 236,903.04 × 100,070.88
  4. Step 4: Simplify right side
    171,648.96x = 23,707,095,687.48
  5. Step 5: Solve for x
    x = 23,707,095,687.48/171,648.96
  6. Step 6: Final answer
    x = 138,113.83

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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.