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Finding the Fourth Proportional to 156,326.70, 234,490.05 and 73,382.70

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Solution

The fourth proportional to 156,326.70, 234,490.05 and 73,382.70 is: 110,074.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,326.70 : 234,490.05 = 73,382.70 : x
  2. Step 2: Convert to fraction form
    156,326.70/234,490.05 = 73,382.70/x
  3. Step 3: Cross multiply
    156,326.70x = 234,490.05 × 73,382.70
  4. Step 4: Simplify right side
    156,326.70x = 17,207,512,992.14
  5. Step 5: Solve for x
    x = 17,207,512,992.14/156,326.70
  6. Step 6: Final answer
    x = 110,074.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.