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Finding the Fourth Proportional to 98,795.60, 148,193.40 and 67,461.20

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Solution

The fourth proportional to 98,795.60, 148,193.40 and 67,461.20 is: 101,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,795.60 : 148,193.40 = 67,461.20 : x
  2. Step 2: Convert to fraction form
    98,795.60/148,193.40 = 67,461.20/x
  3. Step 3: Cross multiply
    98,795.60x = 148,193.40 × 67,461.20
  4. Step 4: Simplify right side
    98,795.60x = 9,997,304,596.08
  5. Step 5: Solve for x
    x = 9,997,304,596.08/98,795.60
  6. Step 6: Final answer
    x = 101,191.80

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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.