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Finding the Fourth Proportional to 58,802.28, 81,148.06 and 31,945.32

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Solution

The fourth proportional to 58,802.28, 81,148.06 and 31,945.32 is: 44,085.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,802.28 : 81,148.06 = 31,945.32 : x
  2. Step 2: Convert to fraction form
    58,802.28/81,148.06 = 31,945.32/x
  3. Step 3: Cross multiply
    58,802.28x = 81,148.06 × 31,945.32
  4. Step 4: Simplify right side
    58,802.28x = 2,592,300,744.08
  5. Step 5: Solve for x
    x = 2,592,300,744.08/58,802.28
  6. Step 6: Final answer
    x = 44,085.04

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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.