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Finding the Fourth Proportional to 250,907.40, 376,361.10 and 144,619.20

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Solution

The fourth proportional to 250,907.40, 376,361.10 and 144,619.20 is: 216,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,907.40 : 376,361.10 = 144,619.20 : x
  2. Step 2: Convert to fraction form
    250,907.40/376,361.10 = 144,619.20/x
  3. Step 3: Cross multiply
    250,907.40x = 376,361.10 × 144,619.20
  4. Step 4: Simplify right side
    250,907.40x = 54,429,041,193.12
  5. Step 5: Solve for x
    x = 54,429,041,193.12/250,907.40
  6. Step 6: Final answer
    x = 216,928.80

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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.