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Finding the Fourth Proportional to 155,713.96, 214,885.54 and 88,645.96

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Solution

The fourth proportional to 155,713.96, 214,885.54 and 88,645.96 is: 122,331.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,713.96 : 214,885.54 = 88,645.96 : x
  2. Step 2: Convert to fraction form
    155,713.96/214,885.54 = 88,645.96/x
  3. Step 3: Cross multiply
    155,713.96x = 214,885.54 × 88,645.96
  4. Step 4: Simplify right side
    155,713.96x = 19,048,734,983.42
  5. Step 5: Solve for x
    x = 19,048,734,983.42/155,713.96
  6. Step 6: Final answer
    x = 122,331.58

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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.