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Finding the Fourth Proportional to 73,323.54, 109,939.95 and 49,878.90

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Solution

The fourth proportional to 73,323.54, 109,939.95 and 49,878.90 is: 74,787.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,323.54 : 109,939.95 = 49,878.90 : x
  2. Step 2: Convert to fraction form
    73,323.54/109,939.95 = 49,878.90/x
  3. Step 3: Cross multiply
    73,323.54x = 109,939.95 × 49,878.90
  4. Step 4: Simplify right side
    73,323.54x = 5,483,683,772.06
  5. Step 5: Solve for x
    x = 5,483,683,772.06/73,323.54
  6. Step 6: Final answer
    x = 74,787.49

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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.