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Finding the Fourth Proportional to 98,956.50, 136,560.45 and 59,212.50

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Solution

The fourth proportional to 98,956.50, 136,560.45 and 59,212.50 is: 81,713.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,956.50 : 136,560.45 = 59,212.50 : x
  2. Step 2: Convert to fraction form
    98,956.50/136,560.45 = 59,212.50/x
  3. Step 3: Cross multiply
    98,956.50x = 136,560.45 × 59,212.50
  4. Step 4: Simplify right side
    98,956.50x = 8,086,085,645.63
  5. Step 5: Solve for x
    x = 8,086,085,645.63/98,956.50
  6. Step 6: Final answer
    x = 81,713.54

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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.