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Finding the Fourth Proportional to 220,559.16, 330,871.55 and 102,242.46

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Solution

The fourth proportional to 220,559.16, 330,871.55 and 102,242.46 is: 153,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,559.16 : 330,871.55 = 102,242.46 : x
  2. Step 2: Convert to fraction form
    220,559.16/330,871.55 = 102,242.46/x
  3. Step 3: Cross multiply
    220,559.16x = 330,871.55 × 102,242.46
  4. Step 4: Simplify right side
    220,559.16x = 33,829,121,216.01
  5. Step 5: Solve for x
    x = 33,829,121,216.01/220,559.16
  6. Step 6: Final answer
    x = 153,378.90

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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.