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Finding the Fourth Proportional to 371,163.60, 556,502.40 and 146,388.60

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Solution

The fourth proportional to 371,163.60, 556,502.40 and 146,388.60 is: 219,487.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,163.60 : 556,502.40 = 146,388.60 : x
  2. Step 2: Convert to fraction form
    371,163.60/556,502.40 = 146,388.60/x
  3. Step 3: Cross multiply
    371,163.60x = 556,502.40 × 146,388.60
  4. Step 4: Simplify right side
    371,163.60x = 81,465,607,232.64
  5. Step 5: Solve for x
    x = 81,465,607,232.64/371,163.60
  6. Step 6: Final answer
    x = 219,487.06

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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.