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Finding the Fourth Proportional to 118,472.96, 163,493.01 and 70,725.28

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Solution

The fourth proportional to 118,472.96, 163,493.01 and 70,725.28 is: 97,601.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,472.96 : 163,493.01 = 70,725.28 : x
  2. Step 2: Convert to fraction form
    118,472.96/163,493.01 = 70,725.28/x
  3. Step 3: Cross multiply
    118,472.96x = 163,493.01 × 70,725.28
  4. Step 4: Simplify right side
    118,472.96x = 11,563,087,739.20
  5. Step 5: Solve for x
    x = 11,563,087,739.20/118,472.96
  6. Step 6: Final answer
    x = 97,601.07

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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.