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Finding the Fourth Proportional to 75,506.52, 113,259.06 and 20,102.52

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Solution

The fourth proportional to 75,506.52, 113,259.06 and 20,102.52 is: 30,153.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,506.52 : 113,259.06 = 20,102.52 : x
  2. Step 2: Convert to fraction form
    75,506.52/113,259.06 = 20,102.52/x
  3. Step 3: Cross multiply
    75,506.52x = 113,259.06 × 20,102.52
  4. Step 4: Simplify right side
    75,506.52x = 2,276,792,518.83
  5. Step 5: Solve for x
    x = 2,276,792,518.83/75,506.52
  6. Step 6: Final answer
    x = 30,153.59

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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.