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Finding the Fourth Proportional to 117,810.67, 162,582.19 and 64,099.15

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Solution

The fourth proportional to 117,810.67, 162,582.19 and 64,099.15 is: 88,458.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,810.67 : 162,582.19 = 64,099.15 : x
  2. Step 2: Convert to fraction form
    117,810.67/162,582.19 = 64,099.15/x
  3. Step 3: Cross multiply
    117,810.67x = 162,582.19 × 64,099.15
  4. Step 4: Simplify right side
    117,810.67x = 10,421,380,184.14
  5. Step 5: Solve for x
    x = 10,421,380,184.14/117,810.67
  6. Step 6: Final answer
    x = 88,458.71

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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.