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Finding the Fourth Proportional to 98,358.48, 147,132.72 and 89,977.44

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Solution

The fourth proportional to 98,358.48, 147,132.72 and 89,977.44 is: 134,595.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,358.48 : 147,132.72 = 89,977.44 : x
  2. Step 2: Convert to fraction form
    98,358.48/147,132.72 = 89,977.44/x
  3. Step 3: Cross multiply
    98,358.48x = 147,132.72 × 89,977.44
  4. Step 4: Simplify right side
    98,358.48x = 13,238,625,485.84
  5. Step 5: Solve for x
    x = 13,238,625,485.84/98,358.48
  6. Step 6: Final answer
    x = 134,595.67

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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.