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Finding the Fourth Proportional to 117,357.25, 161,953.08 and 63,642.25

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Solution

The fourth proportional to 117,357.25, 161,953.08 and 63,642.25 is: 87,826.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,357.25 : 161,953.08 = 63,642.25 : x
  2. Step 2: Convert to fraction form
    117,357.25/161,953.08 = 63,642.25/x
  3. Step 3: Cross multiply
    117,357.25x = 161,953.08 × 63,642.25
  4. Step 4: Simplify right side
    117,357.25x = 10,307,057,595.86
  5. Step 5: Solve for x
    x = 10,307,057,595.86/117,357.25
  6. Step 6: Final answer
    x = 87,826.34

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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.