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Finding the Fourth Proportional to 105,866.61, 146,095.27 and 57,469.51

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Solution

The fourth proportional to 105,866.61, 146,095.27 and 57,469.51 is: 79,307.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,866.61 : 146,095.27 = 57,469.51 : x
  2. Step 2: Convert to fraction form
    105,866.61/146,095.27 = 57,469.51/x
  3. Step 3: Cross multiply
    105,866.61x = 146,095.27 × 57,469.51
  4. Step 4: Simplify right side
    105,866.61x = 8,396,023,580.22
  5. Step 5: Solve for x
    x = 8,396,023,580.22/105,866.61
  6. Step 6: Final answer
    x = 79,307.57

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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.