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Finding the Fourth Proportional to 71,762.48, 108,317.76 and 71,762.48

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Solution

The fourth proportional to 71,762.48, 108,317.76 and 71,762.48 is: 108,317.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,762.48 : 108,317.76 = 71,762.48 : x
  2. Step 2: Convert to fraction form
    71,762.48/108,317.76 = 71,762.48/x
  3. Step 3: Cross multiply
    71,762.48x = 108,317.76 × 71,762.48
  4. Step 4: Simplify right side
    71,762.48x = 7,773,151,085.64
  5. Step 5: Solve for x
    x = 7,773,151,085.64/71,762.48
  6. Step 6: Final answer
    x = 108,317.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.