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Finding the Fourth Proportional to 73,853.64, 101,928.78 and 42,030.36

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Solution

The fourth proportional to 73,853.64, 101,928.78 and 42,030.36 is: 58,008.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,853.64 : 101,928.78 = 42,030.36 : x
  2. Step 2: Convert to fraction form
    73,853.64/101,928.78 = 42,030.36/x
  3. Step 3: Cross multiply
    73,853.64x = 101,928.78 × 42,030.36
  4. Step 4: Simplify right side
    73,853.64x = 4,284,103,317.76
  5. Step 5: Solve for x
    x = 4,284,103,317.76/73,853.64
  6. Step 6: Final answer
    x = 58,008.02

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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.