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Finding the Fourth Proportional to 66,301.48, 99,313.98 and 29,391.40

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Solution

The fourth proportional to 66,301.48, 99,313.98 and 29,391.40 is: 44,025.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,301.48 : 99,313.98 = 29,391.40 : x
  2. Step 2: Convert to fraction form
    66,301.48/99,313.98 = 29,391.40/x
  3. Step 3: Cross multiply
    66,301.48x = 99,313.98 × 29,391.40
  4. Step 4: Simplify right side
    66,301.48x = 2,918,976,911.77
  5. Step 5: Solve for x
    x = 2,918,976,911.77/66,301.48
  6. Step 6: Final answer
    x = 44,025.82

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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.