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Finding the Fourth Proportional to 83,460.68, 115,173.06 and 45,734.12

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Solution

The fourth proportional to 83,460.68, 115,173.06 and 45,734.12 is: 63,111.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,460.68 : 115,173.06 = 45,734.12 : x
  2. Step 2: Convert to fraction form
    83,460.68/115,173.06 = 45,734.12/x
  3. Step 3: Cross multiply
    83,460.68x = 115,173.06 × 45,734.12
  4. Step 4: Simplify right side
    83,460.68x = 5,267,338,546.81
  5. Step 5: Solve for x
    x = 5,267,338,546.81/83,460.68
  6. Step 6: Final answer
    x = 63,111.62

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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.