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Finding the Fourth Proportional to 109,787.67, 151,507.53 and 59,486.67

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Solution

The fourth proportional to 109,787.67, 151,507.53 and 59,486.67 is: 82,091.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,787.67 : 151,507.53 = 59,486.67 : x
  2. Step 2: Convert to fraction form
    109,787.67/151,507.53 = 59,486.67/x
  3. Step 3: Cross multiply
    109,787.67x = 151,507.53 × 59,486.67
  4. Step 4: Simplify right side
    109,787.67x = 9,012,678,439.63
  5. Step 5: Solve for x
    x = 9,012,678,439.63/109,787.67
  6. Step 6: Final answer
    x = 82,091.90

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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.