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Finding the Fourth Proportional to 117,810.99, 162,580.77 and 64,096.65

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Solution

The fourth proportional to 117,810.99, 162,580.77 and 64,096.65 is: 88,454.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,810.99 : 162,580.77 = 64,096.65 : x
  2. Step 2: Convert to fraction form
    117,810.99/162,580.77 = 64,096.65/x
  3. Step 3: Cross multiply
    117,810.99x = 162,580.77 × 64,096.65
  4. Step 4: Simplify right side
    117,810.99x = 10,420,882,711.42
  5. Step 5: Solve for x
    x = 10,420,882,711.42/117,810.99
  6. Step 6: Final answer
    x = 88,454.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.