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Finding the Fourth Proportional to 118,043, 162,899.34 and 65,051

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Solution

The fourth proportional to 118,043, 162,899.34 and 65,051 is: 89,770.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,043 : 162,899.34 = 65,051 : x
  2. Step 2: Convert to fraction form
    118,043/162,899.34 = 65,051/x
  3. Step 3: Cross multiply
    118,043x = 162,899.34 × 65,051
  4. Step 4: Simplify right side
    118,043x = 10,596,764,966.34
  5. Step 5: Solve for x
    x = 10,596,764,966.34/118,043
  6. Step 6: Final answer
    x = 89,770.38

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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.