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Finding the Fourth Proportional to 117,877.63, 162,693.55 and 66,895.11

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Solution

The fourth proportional to 117,877.63, 162,693.55 and 66,895.11 is: 92,327.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,877.63 : 162,693.55 = 66,895.11 : x
  2. Step 2: Convert to fraction form
    117,877.63/162,693.55 = 66,895.11/x
  3. Step 3: Cross multiply
    117,877.63x = 162,693.55 × 66,895.11
  4. Step 4: Simplify right side
    117,877.63x = 10,883,402,923.54
  5. Step 5: Solve for x
    x = 10,883,402,923.54/117,877.63
  6. Step 6: Final answer
    x = 92,327.98

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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.