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Finding the Fourth Proportional to 74,878.80, 103,320.54 and 44,247.64

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Solution

The fourth proportional to 74,878.80, 103,320.54 and 44,247.64 is: 61,054.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,878.80 : 103,320.54 = 44,247.64 : x
  2. Step 2: Convert to fraction form
    74,878.80/103,320.54 = 44,247.64/x
  3. Step 3: Cross multiply
    74,878.80x = 103,320.54 × 44,247.64
  4. Step 4: Simplify right side
    74,878.80x = 4,571,690,058.53
  5. Step 5: Solve for x
    x = 4,571,690,058.53/74,878.80
  6. Step 6: Final answer
    x = 61,054.53

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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.