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Finding the Fourth Proportional to 107,874.51, 148,867.56 and 60,130.86

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Solution

The fourth proportional to 107,874.51, 148,867.56 and 60,130.86 is: 82,981.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,874.51 : 148,867.56 = 60,130.86 : x
  2. Step 2: Convert to fraction form
    107,874.51/148,867.56 = 60,130.86/x
  3. Step 3: Cross multiply
    107,874.51x = 148,867.56 × 60,130.86
  4. Step 4: Simplify right side
    107,874.51x = 8,951,534,408.90
  5. Step 5: Solve for x
    x = 8,951,534,408.90/107,874.51
  6. Step 6: Final answer
    x = 82,981.00

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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.