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Finding the Fourth Proportional to 96,618.70, 144,928.05 and 83,658.70

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Solution

The fourth proportional to 96,618.70, 144,928.05 and 83,658.70 is: 125,488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,618.70 : 144,928.05 = 83,658.70 : x
  2. Step 2: Convert to fraction form
    96,618.70/144,928.05 = 83,658.70/x
  3. Step 3: Cross multiply
    96,618.70x = 144,928.05 × 83,658.70
  4. Step 4: Simplify right side
    96,618.70x = 12,124,492,256.54
  5. Step 5: Solve for x
    x = 12,124,492,256.54/96,618.70
  6. Step 6: Final answer
    x = 125,488.05

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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.