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Finding the Fourth Proportional to 117,678.93, 176,418.91 and 51,068.98

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Solution

The fourth proportional to 117,678.93, 176,418.91 and 51,068.98 is: 76,560.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,678.93 : 176,418.91 = 51,068.98 : x
  2. Step 2: Convert to fraction form
    117,678.93/176,418.91 = 51,068.98/x
  3. Step 3: Cross multiply
    117,678.93x = 176,418.91 × 51,068.98
  4. Step 4: Simplify right side
    117,678.93x = 9,009,534,070.77
  5. Step 5: Solve for x
    x = 9,009,534,070.77/117,678.93
  6. Step 6: Final answer
    x = 76,560.30

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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.