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Finding the Fourth Proportional to 100,107.54, 138,134.76 and 59,812.76

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Solution

The fourth proportional to 100,107.54, 138,134.76 and 59,812.76 is: 82,533.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,107.54 : 138,134.76 = 59,812.76 : x
  2. Step 2: Convert to fraction form
    100,107.54/138,134.76 = 59,812.76/x
  3. Step 3: Cross multiply
    100,107.54x = 138,134.76 × 59,812.76
  4. Step 4: Simplify right side
    100,107.54x = 8,262,221,247.54
  5. Step 5: Solve for x
    x = 8,262,221,247.54/100,107.54
  6. Step 6: Final answer
    x = 82,533.46

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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.