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Finding the Fourth Proportional to 144,808.83, 199,827.95 and 84,389.31

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Solution

The fourth proportional to 144,808.83, 199,827.95 and 84,389.31 is: 116,452.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,808.83 : 199,827.95 = 84,389.31 : x
  2. Step 2: Convert to fraction form
    144,808.83/199,827.95 = 84,389.31/x
  3. Step 3: Cross multiply
    144,808.83x = 199,827.95 × 84,389.31
  4. Step 4: Simplify right side
    144,808.83x = 16,863,342,397.27
  5. Step 5: Solve for x
    x = 16,863,342,397.27/144,808.83
  6. Step 6: Final answer
    x = 116,452.45

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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.