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Finding the Fourth Proportional to 132,809.70, 199,214.55 and 70,601.70

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Solution

The fourth proportional to 132,809.70, 199,214.55 and 70,601.70 is: 105,902.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,809.70 : 199,214.55 = 70,601.70 : x
  2. Step 2: Convert to fraction form
    132,809.70/199,214.55 = 70,601.70/x
  3. Step 3: Cross multiply
    132,809.70x = 199,214.55 × 70,601.70
  4. Step 4: Simplify right side
    132,809.70x = 14,064,885,894.74
  5. Step 5: Solve for x
    x = 14,064,885,894.74/132,809.70
  6. Step 6: Final answer
    x = 105,902.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.