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Finding the Fourth Proportional to 77,606.67, 107,078.52 and 45,322.98

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Solution

The fourth proportional to 77,606.67, 107,078.52 and 45,322.98 is: 62,534.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,606.67 : 107,078.52 = 45,322.98 : x
  2. Step 2: Convert to fraction form
    77,606.67/107,078.52 = 45,322.98/x
  3. Step 3: Cross multiply
    77,606.67x = 107,078.52 × 45,322.98
  4. Step 4: Simplify right side
    77,606.67x = 4,853,117,388.81
  5. Step 5: Solve for x
    x = 4,853,117,388.81/77,606.67
  6. Step 6: Final answer
    x = 62,534.79

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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.