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Finding the Fourth Proportional to 212,965.32, 293,894.02 and 116,169.61

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Solution

The fourth proportional to 212,965.32, 293,894.02 and 116,169.61 is: 160,315.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,965.32 : 293,894.02 = 116,169.61 : x
  2. Step 2: Convert to fraction form
    212,965.32/293,894.02 = 116,169.61/x
  3. Step 3: Cross multiply
    212,965.32x = 293,894.02 × 116,169.61
  4. Step 4: Simplify right side
    212,965.32x = 34,141,553,646.26
  5. Step 5: Solve for x
    x = 34,141,553,646.26/212,965.32
  6. Step 6: Final answer
    x = 160,315.09

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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.