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Finding the Fourth Proportional to 107,534.64, 148,401.54 and 59,790

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Solution

The fourth proportional to 107,534.64, 148,401.54 and 59,790 is: 82,512.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,534.64 : 148,401.54 = 59,790 : x
  2. Step 2: Convert to fraction form
    107,534.64/148,401.54 = 59,790/x
  3. Step 3: Cross multiply
    107,534.64x = 148,401.54 × 59,790
  4. Step 4: Simplify right side
    107,534.64x = 8,872,928,076.60
  5. Step 5: Solve for x
    x = 8,872,928,076.60/107,534.64
  6. Step 6: Final answer
    x = 82,512.28

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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.