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Finding the Fourth Proportional to 117,958.82, 162,784.04 and 64,242.77

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Solution

The fourth proportional to 117,958.82, 162,784.04 and 64,242.77 is: 88,655.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,958.82 : 162,784.04 = 64,242.77 : x
  2. Step 2: Convert to fraction form
    117,958.82/162,784.04 = 64,242.77/x
  3. Step 3: Cross multiply
    117,958.82x = 162,784.04 × 64,242.77
  4. Step 4: Simplify right side
    117,958.82x = 10,457,696,506.26
  5. Step 5: Solve for x
    x = 10,457,696,506.26/117,958.82
  6. Step 6: Final answer
    x = 88,655.49

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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.