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Finding the Fourth Proportional to 220,140.64, 303,801.59 and 123,348.54

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Solution

The fourth proportional to 220,140.64, 303,801.59 and 123,348.54 is: 170,225.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,140.64 : 303,801.59 = 123,348.54 : x
  2. Step 2: Convert to fraction form
    220,140.64/303,801.59 = 123,348.54/x
  3. Step 3: Cross multiply
    220,140.64x = 303,801.59 × 123,348.54
  4. Step 4: Simplify right side
    220,140.64x = 37,473,482,884.55
  5. Step 5: Solve for x
    x = 37,473,482,884.55/220,140.64
  6. Step 6: Final answer
    x = 170,225.19

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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.