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Finding the Fourth Proportional to 253,604.61, 349,970.09 and 140,424.93

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Solution

The fourth proportional to 253,604.61, 349,970.09 and 140,424.93 is: 193,784.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,604.61 : 349,970.09 = 140,424.93 : x
  2. Step 2: Convert to fraction form
    253,604.61/349,970.09 = 140,424.93/x
  3. Step 3: Cross multiply
    253,604.61x = 349,970.09 × 140,424.93
  4. Step 4: Simplify right side
    253,604.61x = 49,144,524,688.22
  5. Step 5: Solve for x
    x = 49,144,524,688.22/253,604.61
  6. Step 6: Final answer
    x = 193,784.04

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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.