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Finding the Fourth Proportional to 79,735.70, 119,603.72 and 74,864.16

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Solution

The fourth proportional to 79,735.70, 119,603.72 and 74,864.16 is: 112,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,735.70 : 119,603.72 = 74,864.16 : x
  2. Step 2: Convert to fraction form
    79,735.70/119,603.72 = 74,864.16/x
  3. Step 3: Cross multiply
    79,735.70x = 119,603.72 × 74,864.16
  4. Step 4: Simplify right side
    79,735.70x = 8,954,032,217.84
  5. Step 5: Solve for x
    x = 8,954,032,217.84/79,735.70
  6. Step 6: Final answer
    x = 112,296.40

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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.