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Finding the Fourth Proportional to 77,612.76, 107,081.52 and 45,324.08

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Solution

The fourth proportional to 77,612.76, 107,081.52 and 45,324.08 is: 62,533.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,612.76 : 107,081.52 = 45,324.08 : x
  2. Step 2: Convert to fraction form
    77,612.76/107,081.52 = 45,324.08/x
  3. Step 3: Cross multiply
    77,612.76x = 107,081.52 × 45,324.08
  4. Step 4: Simplify right side
    77,612.76x = 4,853,371,503.83
  5. Step 5: Solve for x
    x = 4,853,371,503.83/77,612.76
  6. Step 6: Final answer
    x = 62,533.17

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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.