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Finding the Fourth Proportional to 224,002.60, 309,123.44 and 123,400.60

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Solution

The fourth proportional to 224,002.60, 309,123.44 and 123,400.60 is: 170,292.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,002.60 : 309,123.44 = 123,400.60 : x
  2. Step 2: Convert to fraction form
    224,002.60/309,123.44 = 123,400.60/x
  3. Step 3: Cross multiply
    224,002.60x = 309,123.44 × 123,400.60
  4. Step 4: Simplify right side
    224,002.60x = 38,146,017,970.06
  5. Step 5: Solve for x
    x = 38,146,017,970.06/224,002.60
  6. Step 6: Final answer
    x = 170,292.75

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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.