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Finding the Fourth Proportional to 117,648, 176,372.78 and 51,038.01

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Solution

The fourth proportional to 117,648, 176,372.78 and 51,038.01 is: 76,513.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,648 : 176,372.78 = 51,038.01 : x
  2. Step 2: Convert to fraction form
    117,648/176,372.78 = 51,038.01/x
  3. Step 3: Cross multiply
    117,648x = 176,372.78 × 51,038.01
  4. Step 4: Simplify right side
    117,648x = 9,001,715,454.18
  5. Step 5: Solve for x
    x = 9,001,715,454.18/117,648
  6. Step 6: Final answer
    x = 76,513.97

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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.