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Finding the Fourth Proportional to 153,155.80, 229,215.30 and 134,493.40

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Solution

The fourth proportional to 153,155.80, 229,215.30 and 134,493.40 is: 201,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,155.80 : 229,215.30 = 134,493.40 : x
  2. Step 2: Convert to fraction form
    153,155.80/229,215.30 = 134,493.40/x
  3. Step 3: Cross multiply
    153,155.80x = 229,215.30 × 134,493.40
  4. Step 4: Simplify right side
    153,155.80x = 30,827,945,029.02
  5. Step 5: Solve for x
    x = 30,827,945,029.02/153,155.80
  6. Step 6: Final answer
    x = 201,284.87

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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.