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Finding the Fourth Proportional to 158,404.80, 237,607.20 and 147,907.20

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Solution

The fourth proportional to 158,404.80, 237,607.20 and 147,907.20 is: 221,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,404.80 : 237,607.20 = 147,907.20 : x
  2. Step 2: Convert to fraction form
    158,404.80/237,607.20 = 147,907.20/x
  3. Step 3: Cross multiply
    158,404.80x = 237,607.20 × 147,907.20
  4. Step 4: Simplify right side
    158,404.80x = 35,143,815,651.84
  5. Step 5: Solve for x
    x = 35,143,815,651.84/158,404.80
  6. Step 6: Final answer
    x = 221,860.80

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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.