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Finding the Fourth Proportional to 134,998.40, 202,335.60 and 92,878.40

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Solution

The fourth proportional to 134,998.40, 202,335.60 and 92,878.40 is: 139,206.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,998.40 : 202,335.60 = 92,878.40 : x
  2. Step 2: Convert to fraction form
    134,998.40/202,335.60 = 92,878.40/x
  3. Step 3: Cross multiply
    134,998.40x = 202,335.60 × 92,878.40
  4. Step 4: Simplify right side
    134,998.40x = 18,792,606,791.04
  5. Step 5: Solve for x
    x = 18,792,606,791.04/134,998.40
  6. Step 6: Final answer
    x = 139,206.14

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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.