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Finding the Fourth Proportional to 212,409.28, 293,122.48 and 116,913.92

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Solution

The fourth proportional to 212,409.28, 293,122.48 and 116,913.92 is: 161,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,409.28 : 293,122.48 = 116,913.92 : x
  2. Step 2: Convert to fraction form
    212,409.28/293,122.48 = 116,913.92/x
  3. Step 3: Cross multiply
    212,409.28x = 293,122.48 × 116,913.92
  4. Step 4: Simplify right side
    212,409.28x = 34,270,098,176.92
  5. Step 5: Solve for x
    x = 34,270,098,176.92/212,409.28
  6. Step 6: Final answer
    x = 161,339.93

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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.