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Finding the Fourth Proportional to 57,365.66, 79,259.65 and 45,358.02

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Solution

The fourth proportional to 57,365.66, 79,259.65 and 45,358.02 is: 62,669.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,365.66 : 79,259.65 = 45,358.02 : x
  2. Step 2: Convert to fraction form
    57,365.66/79,259.65 = 45,358.02/x
  3. Step 3: Cross multiply
    57,365.66x = 79,259.65 × 45,358.02
  4. Step 4: Simplify right side
    57,365.66x = 3,595,060,676.50
  5. Step 5: Solve for x
    x = 3,595,060,676.50/57,365.66
  6. Step 6: Final answer
    x = 62,669.21

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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.