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Finding the Fourth Proportional to 98,602.92, 147,922.20 and 28,486.08

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Solution

The fourth proportional to 98,602.92, 147,922.20 and 28,486.08 is: 42,734.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,602.92 : 147,922.20 = 28,486.08 : x
  2. Step 2: Convert to fraction form
    98,602.92/147,922.20 = 28,486.08/x
  3. Step 3: Cross multiply
    98,602.92x = 147,922.20 × 28,486.08
  4. Step 4: Simplify right side
    98,602.92x = 4,213,723,622.98
  5. Step 5: Solve for x
    x = 4,213,723,622.98/98,602.92
  6. Step 6: Final answer
    x = 42,734.27

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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.