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Finding the Fourth Proportional to 253,901.99, 350,384.74 and 140,724.74

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Solution

The fourth proportional to 253,901.99, 350,384.74 and 140,724.74 is: 194,200.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,901.99 : 350,384.74 = 140,724.74 : x
  2. Step 2: Convert to fraction form
    253,901.99/350,384.74 = 140,724.74/x
  3. Step 3: Cross multiply
    253,901.99x = 350,384.74 × 140,724.74
  4. Step 4: Simplify right side
    253,901.99x = 49,307,799,684.54
  5. Step 5: Solve for x
    x = 49,307,799,684.54/253,901.99
  6. Step 6: Final answer
    x = 194,200.13

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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.