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Finding the Fourth Proportional to 96,580.30, 144,870.45 and 84,906.70

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Solution

The fourth proportional to 96,580.30, 144,870.45 and 84,906.70 is: 127,360.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,580.30 : 144,870.45 = 84,906.70 : x
  2. Step 2: Convert to fraction form
    96,580.30/144,870.45 = 84,906.70/x
  3. Step 3: Cross multiply
    96,580.30x = 144,870.45 × 84,906.70
  4. Step 4: Simplify right side
    96,580.30x = 12,300,471,837.02
  5. Step 5: Solve for x
    x = 12,300,471,837.02/96,580.30
  6. Step 6: Final answer
    x = 127,360.05

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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.