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Finding the Fourth Proportional to 77,296.60, 106,679.19 and 45,468.46

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Solution

The fourth proportional to 77,296.60, 106,679.19 and 45,468.46 is: 62,752.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,296.60 : 106,679.19 = 45,468.46 : x
  2. Step 2: Convert to fraction form
    77,296.60/106,679.19 = 45,468.46/x
  3. Step 3: Cross multiply
    77,296.60x = 106,679.19 × 45,468.46
  4. Step 4: Simplify right side
    77,296.60x = 4,850,538,483.35
  5. Step 5: Solve for x
    x = 4,850,538,483.35/77,296.60
  6. Step 6: Final answer
    x = 62,752.29

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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.