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Finding the Fourth Proportional to 101,498.40, 152,155.44 and 39,215.52

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Solution

The fourth proportional to 101,498.40, 152,155.44 and 39,215.52 is: 58,787.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,498.40 : 152,155.44 = 39,215.52 : x
  2. Step 2: Convert to fraction form
    101,498.40/152,155.44 = 39,215.52/x
  3. Step 3: Cross multiply
    101,498.40x = 152,155.44 × 39,215.52
  4. Step 4: Simplify right side
    101,498.40x = 5,966,854,700.43
  5. Step 5: Solve for x
    x = 5,966,854,700.43/101,498.40
  6. Step 6: Final answer
    x = 58,787.67

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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.