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Finding the Fourth Proportional to 106,398.81, 146,828.52 and 58,656.60

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Solution

The fourth proportional to 106,398.81, 146,828.52 and 58,656.60 is: 80,945.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,398.81 : 146,828.52 = 58,656.60 : x
  2. Step 2: Convert to fraction form
    106,398.81/146,828.52 = 58,656.60/x
  3. Step 3: Cross multiply
    106,398.81x = 146,828.52 × 58,656.60
  4. Step 4: Simplify right side
    106,398.81x = 8,612,461,766.23
  5. Step 5: Solve for x
    x = 8,612,461,766.23/106,398.81
  6. Step 6: Final answer
    x = 80,945.09

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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.