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Finding the Fourth Proportional to 58,344.40, 87,495 and 45,888.64

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Solution

The fourth proportional to 58,344.40, 87,495 and 45,888.64 is: 68,815.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,344.40 : 87,495 = 45,888.64 : x
  2. Step 2: Convert to fraction form
    58,344.40/87,495 = 45,888.64/x
  3. Step 3: Cross multiply
    58,344.40x = 87,495 × 45,888.64
  4. Step 4: Simplify right side
    58,344.40x = 4,015,026,556.80
  5. Step 5: Solve for x
    x = 4,015,026,556.80/58,344.40
  6. Step 6: Final answer
    x = 68,815.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.