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Finding the Fourth Proportional to 117,869.82, 162,658.08 and 64,156.02

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Solution

The fourth proportional to 117,869.82, 162,658.08 and 64,156.02 is: 88,534.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,869.82 : 162,658.08 = 64,156.02 : x
  2. Step 2: Convert to fraction form
    117,869.82/162,658.08 = 64,156.02/x
  3. Step 3: Cross multiply
    117,869.82x = 162,658.08 × 64,156.02
  4. Step 4: Simplify right side
    117,869.82x = 10,435,495,033.64
  5. Step 5: Solve for x
    x = 10,435,495,033.64/117,869.82
  6. Step 6: Final answer
    x = 88,534.07

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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.