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Finding the Fourth Proportional to 245,898.80, 368,848.20 and 88,132.40

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Solution

The fourth proportional to 245,898.80, 368,848.20 and 88,132.40 is: 132,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,898.80 : 368,848.20 = 88,132.40 : x
  2. Step 2: Convert to fraction form
    245,898.80/368,848.20 = 88,132.40/x
  3. Step 3: Cross multiply
    245,898.80x = 368,848.20 × 88,132.40
  4. Step 4: Simplify right side
    245,898.80x = 32,507,477,101.68
  5. Step 5: Solve for x
    x = 32,507,477,101.68/245,898.80
  6. Step 6: Final answer
    x = 132,198.60

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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.