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Finding the Fourth Proportional to 62,605.67, 93,970 and 45,918.19

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Solution

The fourth proportional to 62,605.67, 93,970 and 45,918.19 is: 68,922.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,605.67 : 93,970 = 45,918.19 : x
  2. Step 2: Convert to fraction form
    62,605.67/93,970 = 45,918.19/x
  3. Step 3: Cross multiply
    62,605.67x = 93,970 × 45,918.19
  4. Step 4: Simplify right side
    62,605.67x = 4,314,931,844.45
  5. Step 5: Solve for x
    x = 4,314,931,844.45/62,605.67
  6. Step 6: Final answer
    x = 68,922.38

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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.