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Finding the Fourth Proportional to 88,282.88, 121,820.16 and 50,554.88

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Solution

The fourth proportional to 88,282.88, 121,820.16 and 50,554.88 is: 69,759.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,282.88 : 121,820.16 = 50,554.88 : x
  2. Step 2: Convert to fraction form
    88,282.88/121,820.16 = 50,554.88/x
  3. Step 3: Cross multiply
    88,282.88x = 121,820.16 × 50,554.88
  4. Step 4: Simplify right side
    88,282.88x = 6,158,603,570.38
  5. Step 5: Solve for x
    x = 6,158,603,570.38/88,282.88
  6. Step 6: Final answer
    x = 69,759.89

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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.