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Finding the Fourth Proportional to 234,409.15, 323,486.18 and 126,979.18

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Solution

The fourth proportional to 234,409.15, 323,486.18 and 126,979.18 is: 175,232.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,409.15 : 323,486.18 = 126,979.18 : x
  2. Step 2: Convert to fraction form
    234,409.15/323,486.18 = 126,979.18/x
  3. Step 3: Cross multiply
    234,409.15x = 323,486.18 × 126,979.18
  4. Step 4: Simplify right side
    234,409.15x = 41,076,009,877.73
  5. Step 5: Solve for x
    x = 41,076,009,877.73/234,409.15
  6. Step 6: Final answer
    x = 175,232.11

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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.