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Finding the Fourth Proportional to 215,174.16, 296,936.08 and 119,678.80

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Solution

The fourth proportional to 215,174.16, 296,936.08 and 119,678.80 is: 165,154.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,174.16 : 296,936.08 = 119,678.80 : x
  2. Step 2: Convert to fraction form
    215,174.16/296,936.08 = 119,678.80/x
  3. Step 3: Cross multiply
    215,174.16x = 296,936.08 × 119,678.80
  4. Step 4: Simplify right side
    215,174.16x = 35,536,953,731.10
  5. Step 5: Solve for x
    x = 35,536,953,731.10/215,174.16
  6. Step 6: Final answer
    x = 165,154.37

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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.