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Finding the Fourth Proportional to 77,662.23, 107,209.98 and 58,549.77

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Solution

The fourth proportional to 77,662.23, 107,209.98 and 58,549.77 is: 80,825.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,662.23 : 107,209.98 = 58,549.77 : x
  2. Step 2: Convert to fraction form
    77,662.23/107,209.98 = 58,549.77/x
  3. Step 3: Cross multiply
    77,662.23x = 107,209.98 × 58,549.77
  4. Step 4: Simplify right side
    77,662.23x = 6,277,119,670.70
  5. Step 5: Solve for x
    x = 6,277,119,670.70/77,662.23
  6. Step 6: Final answer
    x = 80,825.90

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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.