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Finding the Fourth Proportional to 65,120.76, 97,661.16 and 25,130.52

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Solution

The fourth proportional to 65,120.76, 97,661.16 and 25,130.52 is: 37,688.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,120.76 : 97,661.16 = 25,130.52 : x
  2. Step 2: Convert to fraction form
    65,120.76/97,661.16 = 25,130.52/x
  3. Step 3: Cross multiply
    65,120.76x = 97,661.16 × 25,130.52
  4. Step 4: Simplify right side
    65,120.76x = 2,454,275,734.60
  5. Step 5: Solve for x
    x = 2,454,275,734.60/65,120.76
  6. Step 6: Final answer
    x = 37,688.07

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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.