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Finding the Fourth Proportional to 58,802.30, 87,759.07 and 53,127.20

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Solution

The fourth proportional to 58,802.30, 87,759.07 and 53,127.20 is: 79,289.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,802.30 : 87,759.07 = 53,127.20 : x
  2. Step 2: Convert to fraction form
    58,802.30/87,759.07 = 53,127.20/x
  3. Step 3: Cross multiply
    58,802.30x = 87,759.07 × 53,127.20
  4. Step 4: Simplify right side
    58,802.30x = 4,662,393,750.28
  5. Step 5: Solve for x
    x = 4,662,393,750.28/58,802.30
  6. Step 6: Final answer
    x = 79,289.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.