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Finding the Fourth Proportional to 220,598.25, 330,866.13 and 70,818.82

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Solution

The fourth proportional to 220,598.25, 330,866.13 and 70,818.82 is: 106,218.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,598.25 : 330,866.13 = 70,818.82 : x
  2. Step 2: Convert to fraction form
    220,598.25/330,866.13 = 70,818.82/x
  3. Step 3: Cross multiply
    220,598.25x = 330,866.13 × 70,818.82
  4. Step 4: Simplify right side
    220,598.25x = 23,431,547,250.24
  5. Step 5: Solve for x
    x = 23,431,547,250.24/220,598.25
  6. Step 6: Final answer
    x = 106,218.19

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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.