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Finding the Fourth Proportional to 107,759.70, 148,667.49 and 65,302.74

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Solution

The fourth proportional to 107,759.70, 148,667.49 and 65,302.74 is: 90,093.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,759.70 : 148,667.49 = 65,302.74 : x
  2. Step 2: Convert to fraction form
    107,759.70/148,667.49 = 65,302.74/x
  3. Step 3: Cross multiply
    107,759.70x = 148,667.49 × 65,302.74
  4. Step 4: Simplify right side
    107,759.70x = 9,708,394,445.92
  5. Step 5: Solve for x
    x = 9,708,394,445.92/107,759.70
  6. Step 6: Final answer
    x = 90,093.00

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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.