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Finding the Fourth Proportional to 113,856.56, 157,119.36 and 66,108.56

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Solution

The fourth proportional to 113,856.56, 157,119.36 and 66,108.56 is: 91,228.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,856.56 : 157,119.36 = 66,108.56 : x
  2. Step 2: Convert to fraction form
    113,856.56/157,119.36 = 66,108.56/x
  3. Step 3: Cross multiply
    113,856.56x = 157,119.36 × 66,108.56
  4. Step 4: Simplify right side
    113,856.56x = 10,386,934,637.72
  5. Step 5: Solve for x
    x = 10,386,934,637.72/113,856.56
  6. Step 6: Final answer
    x = 91,228.25

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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.