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Finding the Fourth Proportional to 161,463.96, 242,146.67 and 129,798.93

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Solution

The fourth proportional to 161,463.96, 242,146.67 and 129,798.93 is: 194,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,463.96 : 242,146.67 = 129,798.93 : x
  2. Step 2: Convert to fraction form
    161,463.96/242,146.67 = 129,798.93/x
  3. Step 3: Cross multiply
    161,463.96x = 242,146.67 × 129,798.93
  4. Step 4: Simplify right side
    161,463.96x = 31,430,378,993.56
  5. Step 5: Solve for x
    x = 31,430,378,993.56/161,463.96
  6. Step 6: Final answer
    x = 194,658.79

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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.