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Finding the Fourth Proportional to 117,725.30, 162,459.02 and 64,009.84

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Solution

The fourth proportional to 117,725.30, 162,459.02 and 64,009.84 is: 88,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,725.30 : 162,459.02 = 64,009.84 : x
  2. Step 2: Convert to fraction form
    117,725.30/162,459.02 = 64,009.84/x
  3. Step 3: Cross multiply
    117,725.30x = 162,459.02 × 64,009.84
  4. Step 4: Simplify right side
    117,725.30x = 10,398,975,876.76
  5. Step 5: Solve for x
    x = 10,398,975,876.76/117,725.30
  6. Step 6: Final answer
    x = 88,332.55

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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.