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Finding the Fourth Proportional to 105,745.61, 158,628.46 and 38,294.69

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Solution

The fourth proportional to 105,745.61, 158,628.46 and 38,294.69 is: 57,445.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,745.61 : 158,628.46 = 38,294.69 : x
  2. Step 2: Convert to fraction form
    105,745.61/158,628.46 = 38,294.69/x
  3. Step 3: Cross multiply
    105,745.61x = 158,628.46 × 38,294.69
  4. Step 4: Simplify right side
    105,745.61x = 6,074,627,700.88
  5. Step 5: Solve for x
    x = 6,074,627,700.88/105,745.61
  6. Step 6: Final answer
    x = 57,445.67

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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.