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Finding the Fourth Proportional to 250,710.25, 376,130.21 and 146,815.75

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Solution

The fourth proportional to 250,710.25, 376,130.21 and 146,815.75 is: 220,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,710.25 : 376,130.21 = 146,815.75 : x
  2. Step 2: Convert to fraction form
    250,710.25/376,130.21 = 146,815.75/x
  3. Step 3: Cross multiply
    250,710.25x = 376,130.21 × 146,815.75
  4. Step 4: Simplify right side
    250,710.25x = 55,221,839,339.48
  5. Step 5: Solve for x
    x = 55,221,839,339.48/250,710.25
  6. Step 6: Final answer
    x = 220,261.60

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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.