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Finding the Fourth Proportional to 77,796.45, 116,700.81 and 38,332.05

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Solution

The fourth proportional to 77,796.45, 116,700.81 and 38,332.05 is: 57,501.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,796.45 : 116,700.81 = 38,332.05 : x
  2. Step 2: Convert to fraction form
    77,796.45/116,700.81 = 38,332.05/x
  3. Step 3: Cross multiply
    77,796.45x = 116,700.81 × 38,332.05
  4. Step 4: Simplify right side
    77,796.45x = 4,473,381,283.96
  5. Step 5: Solve for x
    x = 4,473,381,283.96/77,796.45
  6. Step 6: Final answer
    x = 57,501.10

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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.