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Finding the Fourth Proportional to 117,805.48, 162,569.86 and 64,090.96

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Solution

The fourth proportional to 117,805.48, 162,569.86 and 64,090.96 is: 88,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,805.48 : 162,569.86 = 64,090.96 : x
  2. Step 2: Convert to fraction form
    117,805.48/162,569.86 = 64,090.96/x
  3. Step 3: Cross multiply
    117,805.48x = 162,569.86 × 64,090.96
  4. Step 4: Simplify right side
    117,805.48x = 10,419,258,394.47
  5. Step 5: Solve for x
    x = 10,419,258,394.47/117,805.48
  6. Step 6: Final answer
    x = 88,444.60

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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.