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Finding the Fourth Proportional to 220,869.30, 331,347.15 and 94,509.30

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Solution

The fourth proportional to 220,869.30, 331,347.15 and 94,509.30 is: 141,782.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,869.30 : 331,347.15 = 94,509.30 : x
  2. Step 2: Convert to fraction form
    220,869.30/331,347.15 = 94,509.30/x
  3. Step 3: Cross multiply
    220,869.30x = 331,347.15 × 94,509.30
  4. Step 4: Simplify right side
    220,869.30x = 31,315,387,203.50
  5. Step 5: Solve for x
    x = 31,315,387,203.50/220,869.30
  6. Step 6: Final answer
    x = 141,782.44

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1.5x scale

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.