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Finding the Fourth Proportional to 303,608.79, 455,691.02 and 153,952.38

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Solution

The fourth proportional to 303,608.79, 455,691.02 and 153,952.38 is: 231,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,608.79 : 455,691.02 = 153,952.38 : x
  2. Step 2: Convert to fraction form
    303,608.79/455,691.02 = 153,952.38/x
  3. Step 3: Cross multiply
    303,608.79x = 455,691.02 × 153,952.38
  4. Step 4: Simplify right side
    303,608.79x = 70,154,716,303.87
  5. Step 5: Solve for x
    x = 70,154,716,303.87/303,608.79
  6. Step 6: Final answer
    x = 231,069.45

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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.