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Finding the Fourth Proportional to 159,045.88, 219,483.77 and 91,063.90

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Solution

The fourth proportional to 159,045.88, 219,483.77 and 91,063.90 is: 125,668.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,045.88 : 219,483.77 = 91,063.90 : x
  2. Step 2: Convert to fraction form
    159,045.88/219,483.77 = 91,063.90/x
  3. Step 3: Cross multiply
    159,045.88x = 219,483.77 × 91,063.90
  4. Step 4: Simplify right side
    159,045.88x = 19,987,046,530.16
  5. Step 5: Solve for x
    x = 19,987,046,530.16/159,045.88
  6. Step 6: Final answer
    x = 125,668.44

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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.