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Finding the Fourth Proportional to 224,342.10, 309,599.01 and 128,867.94

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Solution

The fourth proportional to 224,342.10, 309,599.01 and 128,867.94 is: 177,841.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,342.10 : 309,599.01 = 128,867.94 : x
  2. Step 2: Convert to fraction form
    224,342.10/309,599.01 = 128,867.94/x
  3. Step 3: Cross multiply
    224,342.10x = 309,599.01 × 128,867.94
  4. Step 4: Simplify right side
    224,342.10x = 39,897,386,644.74
  5. Step 5: Solve for x
    x = 39,897,386,644.74/224,342.10
  6. Step 6: Final answer
    x = 177,841.73

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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.