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Finding the Fourth Proportional to 117,453, 176,205.42 and 43,581

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Solution

The fourth proportional to 117,453, 176,205.42 and 43,581 is: 65,381.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,453 : 176,205.42 = 43,581 : x
  2. Step 2: Convert to fraction form
    117,453/176,205.42 = 43,581/x
  3. Step 3: Cross multiply
    117,453x = 176,205.42 × 43,581
  4. Step 4: Simplify right side
    117,453x = 7,679,208,409.02
  5. Step 5: Solve for x
    x = 7,679,208,409.02/117,453
  6. Step 6: Final answer
    x = 65,381.12

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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.