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Finding the Fourth Proportional to 74,964.48, 112,304.64 and 38,054.40

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Solution

The fourth proportional to 74,964.48, 112,304.64 and 38,054.40 is: 57,009.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,964.48 : 112,304.64 = 38,054.40 : x
  2. Step 2: Convert to fraction form
    74,964.48/112,304.64 = 38,054.40/x
  3. Step 3: Cross multiply
    74,964.48x = 112,304.64 × 38,054.40
  4. Step 4: Simplify right side
    74,964.48x = 4,273,685,692.42
  5. Step 5: Solve for x
    x = 4,273,685,692.42/74,964.48
  6. Step 6: Final answer
    x = 57,009.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.