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Finding the Fourth Proportional to 83,460.74, 115,174.58 and 45,219.22

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Solution

The fourth proportional to 83,460.74, 115,174.58 and 45,219.22 is: 62,401.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,460.74 : 115,174.58 = 45,219.22 : x
  2. Step 2: Convert to fraction form
    83,460.74/115,174.58 = 45,219.22/x
  3. Step 3: Cross multiply
    83,460.74x = 115,174.58 × 45,219.22
  4. Step 4: Simplify right side
    83,460.74x = 5,208,104,157.40
  5. Step 5: Solve for x
    x = 5,208,104,157.40/83,460.74
  6. Step 6: Final answer
    x = 62,401.85

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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.