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Finding the Fourth Proportional to 173,143.80, 259,715.70 and 155,647.80

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Solution

The fourth proportional to 173,143.80, 259,715.70 and 155,647.80 is: 233,471.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,143.80 : 259,715.70 = 155,647.80 : x
  2. Step 2: Convert to fraction form
    173,143.80/259,715.70 = 155,647.80/x
  3. Step 3: Cross multiply
    173,143.80x = 259,715.70 × 155,647.80
  4. Step 4: Simplify right side
    173,143.80x = 40,424,177,330.46
  5. Step 5: Solve for x
    x = 40,424,177,330.46/173,143.80
  6. Step 6: Final answer
    x = 233,471.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.