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Finding the Fourth Proportional to 253,463.17, 349,790.22 and 140,285.89

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Solution

The fourth proportional to 253,463.17, 349,790.22 and 140,285.89 is: 193,600.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,463.17 : 349,790.22 = 140,285.89 : x
  2. Step 2: Convert to fraction form
    253,463.17/349,790.22 = 140,285.89/x
  3. Step 3: Cross multiply
    253,463.17x = 349,790.22 × 140,285.89
  4. Step 4: Simplify right side
    253,463.17x = 49,070,632,326.00
  5. Step 5: Solve for x
    x = 49,070,632,326.00/253,463.17
  6. Step 6: Final answer
    x = 193,600.64

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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.