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Finding the Fourth Proportional to 77,775.69, 107,273.16 and 58,656.27

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Solution

The fourth proportional to 77,775.69, 107,273.16 and 58,656.27 is: 80,902.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,775.69 : 107,273.16 = 58,656.27 : x
  2. Step 2: Convert to fraction form
    77,775.69/107,273.16 = 58,656.27/x
  3. Step 3: Cross multiply
    77,775.69x = 107,273.16 × 58,656.27
  4. Step 4: Simplify right side
    77,775.69x = 6,292,243,436.71
  5. Step 5: Solve for x
    x = 6,292,243,436.71/77,775.69
  6. Step 6: Final answer
    x = 80,902.44

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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.