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Finding the Fourth Proportional to 74,407.59, 102,700.17 and 42,594.84

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Solution

The fourth proportional to 74,407.59, 102,700.17 and 42,594.84 is: 58,791.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,407.59 : 102,700.17 = 42,594.84 : x
  2. Step 2: Convert to fraction form
    74,407.59/102,700.17 = 42,594.84/x
  3. Step 3: Cross multiply
    74,407.59x = 102,700.17 × 42,594.84
  4. Step 4: Simplify right side
    74,407.59x = 4,374,497,309.12
  5. Step 5: Solve for x
    x = 4,374,497,309.12/74,407.59
  6. Step 6: Final answer
    x = 58,791.01

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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.