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Finding the Fourth Proportional to 220,847.53, 304,762.95 and 122,730.43

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Solution

The fourth proportional to 220,847.53, 304,762.95 and 122,730.43 is: 169,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,847.53 : 304,762.95 = 122,730.43 : x
  2. Step 2: Convert to fraction form
    220,847.53/304,762.95 = 122,730.43/x
  3. Step 3: Cross multiply
    220,847.53x = 304,762.95 × 122,730.43
  4. Step 4: Simplify right side
    220,847.53x = 37,403,687,901.57
  5. Step 5: Solve for x
    x = 37,403,687,901.57/220,847.53
  6. Step 6: Final answer
    x = 169,364.30

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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.