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Finding the Fourth Proportional to 57,602.61, 79,528.37 and 54,805.95

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Solution

The fourth proportional to 57,602.61, 79,528.37 and 54,805.95 is: 75,667.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,602.61 : 79,528.37 = 54,805.95 : x
  2. Step 2: Convert to fraction form
    57,602.61/79,528.37 = 54,805.95/x
  3. Step 3: Cross multiply
    57,602.61x = 79,528.37 × 54,805.95
  4. Step 4: Simplify right side
    57,602.61x = 4,358,627,595.77
  5. Step 5: Solve for x
    x = 4,358,627,595.77/57,602.61
  6. Step 6: Final answer
    x = 75,667.19

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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.