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Finding the Fourth Proportional to 58,802.93, 81,148.61 and 31,945.64

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Solution

The fourth proportional to 58,802.93, 81,148.61 and 31,945.64 is: 44,085.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,802.93 : 81,148.61 = 31,945.64 : x
  2. Step 2: Convert to fraction form
    58,802.93/81,148.61 = 31,945.64/x
  3. Step 3: Cross multiply
    58,802.93x = 81,148.61 × 31,945.64
  4. Step 4: Simplify right side
    58,802.93x = 2,592,344,121.83
  5. Step 5: Solve for x
    x = 2,592,344,121.83/58,802.93
  6. Step 6: Final answer
    x = 44,085.29

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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.