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Finding the Fourth Proportional to 224,616.11, 309,970.88 and 122,642.45

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Solution

The fourth proportional to 224,616.11, 309,970.88 and 122,642.45 is: 169,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,616.11 : 309,970.88 = 122,642.45 : x
  2. Step 2: Convert to fraction form
    224,616.11/309,970.88 = 122,642.45/x
  3. Step 3: Cross multiply
    224,616.11x = 309,970.88 × 122,642.45
  4. Step 4: Simplify right side
    224,616.11x = 38,015,588,151.86
  5. Step 5: Solve for x
    x = 38,015,588,151.86/224,616.11
  6. Step 6: Final answer
    x = 169,246.93

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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.