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Finding the Fourth Proportional to 231,109.92, 318,623.28 and 183,520.80

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Solution

The fourth proportional to 231,109.92, 318,623.28 and 183,520.80 is: 253,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,109.92 : 318,623.28 = 183,520.80 : x
  2. Step 2: Convert to fraction form
    231,109.92/318,623.28 = 183,520.80/x
  3. Step 3: Cross multiply
    231,109.92x = 318,623.28 × 183,520.80
  4. Step 4: Simplify right side
    231,109.92x = 58,473,999,244.22
  5. Step 5: Solve for x
    x = 58,473,999,244.22/231,109.92
  6. Step 6: Final answer
    x = 253,013.80

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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.