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Finding the Fourth Proportional to 58,802.25, 81,143.32 and 33,313.98

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Solution

The fourth proportional to 58,802.25, 81,143.32 and 33,313.98 is: 45,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,802.25 : 81,143.32 = 33,313.98 : x
  2. Step 2: Convert to fraction form
    58,802.25/81,143.32 = 33,313.98/x
  3. Step 3: Cross multiply
    58,802.25x = 81,143.32 × 33,313.98
  4. Step 4: Simplify right side
    58,802.25x = 2,703,207,223.08
  5. Step 5: Solve for x
    x = 2,703,207,223.08/58,802.25
  6. Step 6: Final answer
    x = 45,971.15

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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.