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Finding the Fourth Proportional to 252,614.40, 348,602.88 and 139,441.92

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Solution

The fourth proportional to 252,614.40, 348,602.88 and 139,441.92 is: 192,427.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,614.40 : 348,602.88 = 139,441.92 : x
  2. Step 2: Convert to fraction form
    252,614.40/348,602.88 = 139,441.92/x
  3. Step 3: Cross multiply
    252,614.40x = 348,602.88 × 139,441.92
  4. Step 4: Simplify right side
    252,614.40x = 48,609,854,904.73
  5. Step 5: Solve for x
    x = 48,609,854,904.73/252,614.40
  6. Step 6: Final answer
    x = 192,427.09

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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.