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Finding the Fourth Proportional to 309,448.62, 464,179.41 and 99,085.95

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Solution

The fourth proportional to 309,448.62, 464,179.41 and 99,085.95 is: 148,631.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,448.62 : 464,179.41 = 99,085.95 : x
  2. Step 2: Convert to fraction form
    309,448.62/464,179.41 = 99,085.95/x
  3. Step 3: Cross multiply
    309,448.62x = 464,179.41 × 99,085.95
  4. Step 4: Simplify right side
    309,448.62x = 45,993,657,810.29
  5. Step 5: Solve for x
    x = 45,993,657,810.29/309,448.62
  6. Step 6: Final answer
    x = 148,631.00

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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.