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Finding the Fourth Proportional to 109,836.76, 164,755.14 and 39,699.67

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Solution

The fourth proportional to 109,836.76, 164,755.14 and 39,699.67 is: 59,549.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,836.76 : 164,755.14 = 39,699.67 : x
  2. Step 2: Convert to fraction form
    109,836.76/164,755.14 = 39,699.67/x
  3. Step 3: Cross multiply
    109,836.76x = 164,755.14 × 39,699.67
  4. Step 4: Simplify right side
    109,836.76x = 6,540,724,548.61
  5. Step 5: Solve for x
    x = 6,540,724,548.61/109,836.76
  6. Step 6: Final answer
    x = 59,549.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.