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Finding the Fourth Proportional to 74,618.84, 111,955 and 37,175.58

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Solution

The fourth proportional to 74,618.84, 111,955 and 37,175.58 is: 55,776.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,618.84 : 111,955 = 37,175.58 : x
  2. Step 2: Convert to fraction form
    74,618.84/111,955 = 37,175.58/x
  3. Step 3: Cross multiply
    74,618.84x = 111,955 × 37,175.58
  4. Step 4: Simplify right side
    74,618.84x = 4,161,992,058.90
  5. Step 5: Solve for x
    x = 4,161,992,058.90/74,618.84
  6. Step 6: Final answer
    x = 55,776.69

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1.5x scale

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.