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Finding the Fourth Proportional to 83,992.80, 115,910.40 and 46,267.20

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Solution

The fourth proportional to 83,992.80, 115,910.40 and 46,267.20 is: 63,848.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,992.80 : 115,910.40 = 46,267.20 : x
  2. Step 2: Convert to fraction form
    83,992.80/115,910.40 = 46,267.20/x
  3. Step 3: Cross multiply
    83,992.80x = 115,910.40 × 46,267.20
  4. Step 4: Simplify right side
    83,992.80x = 5,362,849,658.88
  5. Step 5: Solve for x
    x = 5,362,849,658.88/83,992.80
  6. Step 6: Final answer
    x = 63,848.92

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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.