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Finding the Fourth Proportional to 96,616.70, 144,925.05 and 83,656.70

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Solution

The fourth proportional to 96,616.70, 144,925.05 and 83,656.70 is: 125,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,616.70 : 144,925.05 = 83,656.70 : x
  2. Step 2: Convert to fraction form
    96,616.70/144,925.05 = 83,656.70/x
  3. Step 3: Cross multiply
    96,616.70x = 144,925.05 × 83,656.70
  4. Step 4: Simplify right side
    96,616.70x = 12,123,951,430.34
  5. Step 5: Solve for x
    x = 12,123,951,430.34/96,616.70
  6. Step 6: Final answer
    x = 125,485.05

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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.