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Finding the Fourth Proportional to 117,490.58, 162,171.21 and 71,566.82

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Solution

The fourth proportional to 117,490.58, 162,171.21 and 71,566.82 is: 98,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,490.58 : 162,171.21 = 71,566.82 : x
  2. Step 2: Convert to fraction form
    117,490.58/162,171.21 = 71,566.82/x
  3. Step 3: Cross multiply
    117,490.58x = 162,171.21 × 71,566.82
  4. Step 4: Simplify right side
    117,490.58x = 11,606,077,795.25
  5. Step 5: Solve for x
    x = 11,606,077,795.25/117,490.58
  6. Step 6: Final answer
    x = 98,783.05

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1.5x scale

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.