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Finding the Fourth Proportional to 116,020.40, 173,987.40 and 45,885.20

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Solution

The fourth proportional to 116,020.40, 173,987.40 and 45,885.20 is: 68,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,020.40 : 173,987.40 = 45,885.20 : x
  2. Step 2: Convert to fraction form
    116,020.40/173,987.40 = 45,885.20/x
  3. Step 3: Cross multiply
    116,020.40x = 173,987.40 × 45,885.20
  4. Step 4: Simplify right side
    116,020.40x = 7,983,446,646.48
  5. Step 5: Solve for x
    x = 7,983,446,646.48/116,020.40
  6. Step 6: Final answer
    x = 68,810.71

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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.