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Finding the Fourth Proportional to 306,907.41, 423,553.51 and 186,053.79

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Solution

The fourth proportional to 306,907.41, 423,553.51 and 186,053.79 is: 256,767.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,907.41 : 423,553.51 = 186,053.79 : x
  2. Step 2: Convert to fraction form
    306,907.41/423,553.51 = 186,053.79/x
  3. Step 3: Cross multiply
    306,907.41x = 423,553.51 × 186,053.79
  4. Step 4: Simplify right side
    306,907.41x = 78,803,735,803.30
  5. Step 5: Solve for x
    x = 78,803,735,803.30/306,907.41
  6. Step 6: Final answer
    x = 256,767.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.