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Finding the Fourth Proportional to 71,113.92, 98,063.55 and 61,075.56

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Solution

The fourth proportional to 71,113.92, 98,063.55 and 61,075.56 is: 84,221.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,113.92 : 98,063.55 = 61,075.56 : x
  2. Step 2: Convert to fraction form
    71,113.92/98,063.55 = 61,075.56/x
  3. Step 3: Cross multiply
    71,113.92x = 98,063.55 × 61,075.56
  4. Step 4: Simplify right side
    71,113.92x = 5,989,286,231.84
  5. Step 5: Solve for x
    x = 5,989,286,231.84/71,113.92
  6. Step 6: Final answer
    x = 84,221.01

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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.