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Finding the Fourth Proportional to 187,535.66, 258,735.15 and 106,905.06

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Solution

The fourth proportional to 187,535.66, 258,735.15 and 106,905.06 is: 147,492.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,535.66 : 258,735.15 = 106,905.06 : x
  2. Step 2: Convert to fraction form
    187,535.66/258,735.15 = 106,905.06/x
  3. Step 3: Cross multiply
    187,535.66x = 258,735.15 × 106,905.06
  4. Step 4: Simplify right side
    187,535.66x = 27,660,096,734.86
  5. Step 5: Solve for x
    x = 27,660,096,734.86/187,535.66
  6. Step 6: Final answer
    x = 147,492.47

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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.