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Finding the Fourth Proportional to 98,070.80, 147,125.40 and 41,910.80

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Solution

The fourth proportional to 98,070.80, 147,125.40 and 41,910.80 is: 62,874.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,070.80 : 147,125.40 = 41,910.80 : x
  2. Step 2: Convert to fraction form
    98,070.80/147,125.40 = 41,910.80/x
  3. Step 3: Cross multiply
    98,070.80x = 147,125.40 × 41,910.80
  4. Step 4: Simplify right side
    98,070.80x = 6,166,143,214.32
  5. Step 5: Solve for x
    x = 6,166,143,214.32/98,070.80
  6. Step 6: Final answer
    x = 62,874.41

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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.