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Finding the Fourth Proportional to 109,223.33, 163,858.39 and 61,860.80

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Solution

The fourth proportional to 109,223.33, 163,858.39 and 61,860.80 is: 92,804.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,223.33 : 163,858.39 = 61,860.80 : x
  2. Step 2: Convert to fraction form
    109,223.33/163,858.39 = 61,860.80/x
  3. Step 3: Cross multiply
    109,223.33x = 163,858.39 × 61,860.80
  4. Step 4: Simplify right side
    109,223.33x = 10,136,411,347.11
  5. Step 5: Solve for x
    x = 10,136,411,347.11/109,223.33
  6. Step 6: Final answer
    x = 92,804.46

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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.