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Finding the Fourth Proportional to 84,759.70, 116,984.52 and 56,079.93

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Solution

The fourth proportional to 84,759.70, 116,984.52 and 56,079.93 is: 77,400.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,759.70 : 116,984.52 = 56,079.93 : x
  2. Step 2: Convert to fraction form
    84,759.70/116,984.52 = 56,079.93/x
  3. Step 3: Cross multiply
    84,759.70x = 116,984.52 × 56,079.93
  4. Step 4: Simplify right side
    84,759.70x = 6,560,483,692.68
  5. Step 5: Solve for x
    x = 6,560,483,692.68/84,759.70
  6. Step 6: Final answer
    x = 77,400.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.