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Finding the Fourth Proportional to 233,247.80, 349,871.70 and 220,417.40

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Solution

The fourth proportional to 233,247.80, 349,871.70 and 220,417.40 is: 330,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,247.80 : 349,871.70 = 220,417.40 : x
  2. Step 2: Convert to fraction form
    233,247.80/349,871.70 = 220,417.40/x
  3. Step 3: Cross multiply
    233,247.80x = 349,871.70 × 220,417.40
  4. Step 4: Simplify right side
    233,247.80x = 77,117,810,447.58
  5. Step 5: Solve for x
    x = 77,117,810,447.58/233,247.80
  6. Step 6: Final answer
    x = 330,626.10

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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.