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Finding the Fourth Proportional to 252,488.53, 348,441.47 and 139,318.57

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Solution

The fourth proportional to 252,488.53, 348,441.47 and 139,318.57 is: 192,263.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,488.53 : 348,441.47 = 139,318.57 : x
  2. Step 2: Convert to fraction form
    252,488.53/348,441.47 = 139,318.57/x
  3. Step 3: Cross multiply
    252,488.53x = 348,441.47 × 139,318.57
  4. Step 4: Simplify right side
    252,488.53x = 48,544,367,590.50
  5. Step 5: Solve for x
    x = 48,544,367,590.50/252,488.53
  6. Step 6: Final answer
    x = 192,263.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.