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Finding the Fourth Proportional to 104,417.71, 143,987.52 and 61,968.04

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Solution

The fourth proportional to 104,417.71, 143,987.52 and 61,968.04 is: 85,451.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,417.71 : 143,987.52 = 61,968.04 : x
  2. Step 2: Convert to fraction form
    104,417.71/143,987.52 = 61,968.04/x
  3. Step 3: Cross multiply
    104,417.71x = 143,987.52 × 61,968.04
  4. Step 4: Simplify right side
    104,417.71x = 8,922,624,271.27
  5. Step 5: Solve for x
    x = 8,922,624,271.27/104,417.71
  6. Step 6: Final answer
    x = 85,451.26

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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.