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Finding the Fourth Proportional to 139,270.59, 208,881.18 and 63,351.45

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Solution

The fourth proportional to 139,270.59, 208,881.18 and 63,351.45 is: 95,015.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,270.59 : 208,881.18 = 63,351.45 : x
  2. Step 2: Convert to fraction form
    139,270.59/208,881.18 = 63,351.45/x
  3. Step 3: Cross multiply
    139,270.59x = 208,881.18 × 63,351.45
  4. Step 4: Simplify right side
    139,270.59x = 13,232,925,630.71
  5. Step 5: Solve for x
    x = 13,232,925,630.71/139,270.59
  6. Step 6: Final answer
    x = 95,015.94

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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.