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Finding the Fourth Proportional to 303,975.36, 455,278.08 and 146,322.24

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Solution

The fourth proportional to 303,975.36, 455,278.08 and 146,322.24 is: 219,153.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,975.36 : 455,278.08 = 146,322.24 : x
  2. Step 2: Convert to fraction form
    303,975.36/455,278.08 = 146,322.24/x
  3. Step 3: Cross multiply
    303,975.36x = 455,278.08 × 146,322.24
  4. Step 4: Simplify right side
    303,975.36x = 66,617,308,488.50
  5. Step 5: Solve for x
    x = 66,617,308,488.50/303,975.36
  6. Step 6: Final answer
    x = 219,153.65

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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.