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Finding the Fourth Proportional to 84,817.80, 118,589.40 and 84,817.80

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Solution

The fourth proportional to 84,817.80, 118,589.40 and 84,817.80 is: 118,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,817.80 : 118,589.40 = 84,817.80 : x
  2. Step 2: Convert to fraction form
    84,817.80/118,589.40 = 84,817.80/x
  3. Step 3: Cross multiply
    84,817.80x = 118,589.40 × 84,817.80
  4. Step 4: Simplify right side
    84,817.80x = 10,058,492,011.32
  5. Step 5: Solve for x
    x = 10,058,492,011.32/84,817.80
  6. Step 6: Final answer
    x = 118,589.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.