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Finding the Fourth Proportional to 73,259.36, 109,978.75 and 48,320.26

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Solution

The fourth proportional to 73,259.36, 109,978.75 and 48,320.26 is: 72,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,259.36 : 109,978.75 = 48,320.26 : x
  2. Step 2: Convert to fraction form
    73,259.36/109,978.75 = 48,320.26/x
  3. Step 3: Cross multiply
    73,259.36x = 109,978.75 × 48,320.26
  4. Step 4: Simplify right side
    73,259.36x = 5,314,201,794.48
  5. Step 5: Solve for x
    x = 5,314,201,794.48/73,259.36
  6. Step 6: Final answer
    x = 72,539.56

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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.