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Finding the Fourth Proportional to 370,840.80, 556,228.80 and 121,522.80

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Solution

The fourth proportional to 370,840.80, 556,228.80 and 121,522.80 is: 182,273.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,840.80 : 556,228.80 = 121,522.80 : x
  2. Step 2: Convert to fraction form
    370,840.80/556,228.80 = 121,522.80/x
  3. Step 3: Cross multiply
    370,840.80x = 556,228.80 × 121,522.80
  4. Step 4: Simplify right side
    370,840.80x = 67,594,481,216.64
  5. Step 5: Solve for x
    x = 67,594,481,216.64/370,840.80
  6. Step 6: Final answer
    x = 182,273.58

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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.