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Finding the Fourth Proportional to 88,193.73, 121,709.54 and 47,907.48

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Solution

The fourth proportional to 88,193.73, 121,709.54 and 47,907.48 is: 66,113.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,193.73 : 121,709.54 = 47,907.48 : x
  2. Step 2: Convert to fraction form
    88,193.73/121,709.54 = 47,907.48/x
  3. Step 3: Cross multiply
    88,193.73x = 121,709.54 × 47,907.48
  4. Step 4: Simplify right side
    88,193.73x = 5,830,797,353.36
  5. Step 5: Solve for x
    x = 5,830,797,353.36/88,193.73
  6. Step 6: Final answer
    x = 66,113.51

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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.