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Finding the Fourth Proportional to 74,984.40, 112,330.80 and 41,644.80

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Solution

The fourth proportional to 74,984.40, 112,330.80 and 41,644.80 is: 62,386.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,984.40 : 112,330.80 = 41,644.80 : x
  2. Step 2: Convert to fraction form
    74,984.40/112,330.80 = 41,644.80/x
  3. Step 3: Cross multiply
    74,984.40x = 112,330.80 × 41,644.80
  4. Step 4: Simplify right side
    74,984.40x = 4,677,993,699.84
  5. Step 5: Solve for x
    x = 4,677,993,699.84/74,984.40
  6. Step 6: Final answer
    x = 62,386.23

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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.