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Finding the Fourth Proportional to 303,681.92, 455,476.16 and 101,281.58

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Solution

The fourth proportional to 303,681.92, 455,476.16 and 101,281.58 is: 151,906.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,681.92 : 455,476.16 = 101,281.58 : x
  2. Step 2: Convert to fraction form
    303,681.92/455,476.16 = 101,281.58/x
  3. Step 3: Cross multiply
    303,681.92x = 455,476.16 × 101,281.58
  4. Step 4: Simplify right side
    303,681.92x = 46,131,345,137.13
  5. Step 5: Solve for x
    x = 46,131,345,137.13/303,681.92
  6. Step 6: Final answer
    x = 151,906.79

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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.