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Finding the Fourth Proportional to 74,563.95, 102,846.74 and 62,265.45

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Solution

The fourth proportional to 74,563.95, 102,846.74 and 62,265.45 is: 85,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,563.95 : 102,846.74 = 62,265.45 : x
  2. Step 2: Convert to fraction form
    74,563.95/102,846.74 = 62,265.45/x
  3. Step 3: Cross multiply
    74,563.95x = 102,846.74 × 62,265.45
  4. Step 4: Simplify right side
    74,563.95x = 6,403,798,235.81
  5. Step 5: Solve for x
    x = 6,403,798,235.81/74,563.95
  6. Step 6: Final answer
    x = 85,883.30

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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.