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Finding the Fourth Proportional to 147,593.55, 221,422.73 and 72,749.55

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Solution

The fourth proportional to 147,593.55, 221,422.73 and 72,749.55 is: 109,140.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,593.55 : 221,422.73 = 72,749.55 : x
  2. Step 2: Convert to fraction form
    147,593.55/221,422.73 = 72,749.55/x
  3. Step 3: Cross multiply
    147,593.55x = 221,422.73 × 72,749.55
  4. Step 4: Simplify right side
    147,593.55x = 16,108,403,603.52
  5. Step 5: Solve for x
    x = 16,108,403,603.52/147,593.55
  6. Step 6: Final answer
    x = 109,140.30

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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.