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Finding the Fourth Proportional to 309,448.99, 464,177.57 and 99,086.93

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Solution

The fourth proportional to 309,448.99, 464,177.57 and 99,086.93 is: 148,631.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,448.99 : 464,177.57 = 99,086.93 : x
  2. Step 2: Convert to fraction form
    309,448.99/464,177.57 = 99,086.93/x
  3. Step 3: Cross multiply
    309,448.99x = 464,177.57 × 99,086.93
  4. Step 4: Simplify right side
    309,448.99x = 45,993,929,867.87
  5. Step 5: Solve for x
    x = 45,993,929,867.87/309,448.99
  6. Step 6: Final answer
    x = 148,631.70

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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.