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Finding the Fourth Proportional to 96,603.20, 144,904.80 and 82,606.40

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Solution

The fourth proportional to 96,603.20, 144,904.80 and 82,606.40 is: 123,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,603.20 : 144,904.80 = 82,606.40 : x
  2. Step 2: Convert to fraction form
    96,603.20/144,904.80 = 82,606.40/x
  3. Step 3: Cross multiply
    96,603.20x = 144,904.80 × 82,606.40
  4. Step 4: Simplify right side
    96,603.20x = 11,970,063,870.72
  5. Step 5: Solve for x
    x = 11,970,063,870.72/96,603.20
  6. Step 6: Final answer
    x = 123,909.60

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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.