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Finding the Fourth Proportional to 117,840.46, 162,619.53 and 64,125.46

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Solution

The fourth proportional to 117,840.46, 162,619.53 and 64,125.46 is: 88,492.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,840.46 : 162,619.53 = 64,125.46 : x
  2. Step 2: Convert to fraction form
    117,840.46/162,619.53 = 64,125.46/x
  3. Step 3: Cross multiply
    117,840.46x = 162,619.53 × 64,125.46
  4. Step 4: Simplify right side
    117,840.46x = 10,428,052,166.23
  5. Step 5: Solve for x
    x = 10,428,052,166.23/117,840.46
  6. Step 6: Final answer
    x = 88,492.97

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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.