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Finding the Fourth Proportional to 370,121.40, 553,869.90 and 252,023.40

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Solution

The fourth proportional to 370,121.40, 553,869.90 and 252,023.40 is: 377,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,121.40 : 553,869.90 = 252,023.40 : x
  2. Step 2: Convert to fraction form
    370,121.40/553,869.90 = 252,023.40/x
  3. Step 3: Cross multiply
    370,121.40x = 553,869.90 × 252,023.40
  4. Step 4: Simplify right side
    370,121.40x = 139,588,175,355.66
  5. Step 5: Solve for x
    x = 139,588,175,355.66/370,121.40
  6. Step 6: Final answer
    x = 377,141.60

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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.