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Finding the Fourth Proportional to 252,503.70, 348,454.71 and 139,326.36

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Solution

The fourth proportional to 252,503.70, 348,454.71 and 139,326.36 is: 192,270.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,503.70 : 348,454.71 = 139,326.36 : x
  2. Step 2: Convert to fraction form
    252,503.70/348,454.71 = 139,326.36/x
  3. Step 3: Cross multiply
    252,503.70x = 348,454.71 × 139,326.36
  4. Step 4: Simplify right side
    252,503.70x = 48,548,926,369.16
  5. Step 5: Solve for x
    x = 48,548,926,369.16/252,503.70
  6. Step 6: Final answer
    x = 192,270.16

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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.