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Finding the Fourth Proportional to 255,000.72, 351,901.44 and 141,823.68

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Solution

The fourth proportional to 255,000.72, 351,901.44 and 141,823.68 is: 195,716.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,000.72 : 351,901.44 = 141,823.68 : x
  2. Step 2: Convert to fraction form
    255,000.72/351,901.44 = 141,823.68/x
  3. Step 3: Cross multiply
    255,000.72x = 351,901.44 × 141,823.68
  4. Step 4: Simplify right side
    255,000.72x = 49,907,957,218.10
  5. Step 5: Solve for x
    x = 49,907,957,218.10/255,000.72
  6. Step 6: Final answer
    x = 195,716.93

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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.