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Finding the Fourth Proportional to 117,008.70, 175,588.65 and 64,455.90

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Solution

The fourth proportional to 117,008.70, 175,588.65 and 64,455.90 is: 96,725.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,008.70 : 175,588.65 = 64,455.90 : x
  2. Step 2: Convert to fraction form
    117,008.70/175,588.65 = 64,455.90/x
  3. Step 3: Cross multiply
    117,008.70x = 175,588.65 × 64,455.90
  4. Step 4: Simplify right side
    117,008.70x = 11,317,724,465.54
  5. Step 5: Solve for x
    x = 11,317,724,465.54/117,008.70
  6. Step 6: Final answer
    x = 96,725.50

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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.