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Finding the Fourth Proportional to 215,588.95, 297,521.72 and 120,095.62

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Solution

The fourth proportional to 215,588.95, 297,521.72 and 120,095.62 is: 165,736.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,588.95 : 297,521.72 = 120,095.62 : x
  2. Step 2: Convert to fraction form
    215,588.95/297,521.72 = 120,095.62/x
  3. Step 3: Cross multiply
    215,588.95x = 297,521.72 × 120,095.62
  4. Step 4: Simplify right side
    215,588.95x = 35,731,055,426.87
  5. Step 5: Solve for x
    x = 35,731,055,426.87/215,588.95
  6. Step 6: Final answer
    x = 165,736.95

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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.