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Finding the Fourth Proportional to 303,382.86, 455,057.28 and 93,020.22

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Solution

The fourth proportional to 303,382.86, 455,057.28 and 93,020.22 is: 139,525.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,382.86 : 455,057.28 = 93,020.22 : x
  2. Step 2: Convert to fraction form
    303,382.86/455,057.28 = 93,020.22/x
  3. Step 3: Cross multiply
    303,382.86x = 455,057.28 × 93,020.22
  4. Step 4: Simplify right side
    303,382.86x = 42,329,528,298.20
  5. Step 5: Solve for x
    x = 42,329,528,298.20/303,382.86
  6. Step 6: Final answer
    x = 139,525.11

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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.