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Finding the Fourth Proportional to 74,233, 111,070.50 and 52,089.58

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Solution

The fourth proportional to 74,233, 111,070.50 and 52,089.58 is: 77,938.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,233 : 111,070.50 = 52,089.58 : x
  2. Step 2: Convert to fraction form
    74,233/111,070.50 = 52,089.58/x
  3. Step 3: Cross multiply
    74,233x = 111,070.50 × 52,089.58
  4. Step 4: Simplify right side
    74,233x = 5,785,615,695.39
  5. Step 5: Solve for x
    x = 5,785,615,695.39/74,233
  6. Step 6: Final answer
    x = 77,938.59

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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.