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Finding the Fourth Proportional to 309,552.39, 464,329.31 and 84,916.08

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Solution

The fourth proportional to 309,552.39, 464,329.31 and 84,916.08 is: 127,374.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,552.39 : 464,329.31 = 84,916.08 : x
  2. Step 2: Convert to fraction form
    309,552.39/464,329.31 = 84,916.08/x
  3. Step 3: Cross multiply
    309,552.39x = 464,329.31 × 84,916.08
  4. Step 4: Simplify right side
    309,552.39x = 39,429,024,409.72
  5. Step 5: Solve for x
    x = 39,429,024,409.72/309,552.39
  6. Step 6: Final answer
    x = 127,374.32

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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.