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Finding the Fourth Proportional to 193,471.60, 267,030.60 and 121,803.52

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Solution

The fourth proportional to 193,471.60, 267,030.60 and 121,803.52 is: 168,113.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,471.60 : 267,030.60 = 121,803.52 : x
  2. Step 2: Convert to fraction form
    193,471.60/267,030.60 = 121,803.52/x
  3. Step 3: Cross multiply
    193,471.60x = 267,030.60 × 121,803.52
  4. Step 4: Simplify right side
    193,471.60x = 32,525,267,027.71
  5. Step 5: Solve for x
    x = 32,525,267,027.71/193,471.60
  6. Step 6: Final answer
    x = 168,113.91

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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.