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Finding the Fourth Proportional to 98,141.76, 135,461.52 and 60,447.60

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Solution

The fourth proportional to 98,141.76, 135,461.52 and 60,447.60 is: 83,433.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,141.76 : 135,461.52 = 60,447.60 : x
  2. Step 2: Convert to fraction form
    98,141.76/135,461.52 = 60,447.60/x
  3. Step 3: Cross multiply
    98,141.76x = 135,461.52 × 60,447.60
  4. Step 4: Simplify right side
    98,141.76x = 8,188,323,776.35
  5. Step 5: Solve for x
    x = 8,188,323,776.35/98,141.76
  6. Step 6: Final answer
    x = 83,433.63

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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.