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Finding the Fourth Proportional to 99,257.44, 136,975.44 and 53,935

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Solution

The fourth proportional to 99,257.44, 136,975.44 and 53,935 is: 74,430.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,257.44 : 136,975.44 = 53,935 : x
  2. Step 2: Convert to fraction form
    99,257.44/136,975.44 = 53,935/x
  3. Step 3: Cross multiply
    99,257.44x = 136,975.44 × 53,935
  4. Step 4: Simplify right side
    99,257.44x = 7,387,770,356.40
  5. Step 5: Solve for x
    x = 7,387,770,356.40/99,257.44
  6. Step 6: Final answer
    x = 74,430.39

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1.5x scale

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.