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Finding the Fourth Proportional to 115,652.76, 159,627.54 and 75,296.34

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Solution

The fourth proportional to 115,652.76, 159,627.54 and 75,296.34 is: 103,926.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,652.76 : 159,627.54 = 75,296.34 : x
  2. Step 2: Convert to fraction form
    115,652.76/159,627.54 = 75,296.34/x
  3. Step 3: Cross multiply
    115,652.76x = 159,627.54 × 75,296.34
  4. Step 4: Simplify right side
    115,652.76x = 12,019,369,525.20
  5. Step 5: Solve for x
    x = 12,019,369,525.20/115,652.76
  6. Step 6: Final answer
    x = 103,926.35

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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.