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Finding the Fourth Proportional to 183,706.79, 253,497.87 and 103,115.84

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Solution

The fourth proportional to 183,706.79, 253,497.87 and 103,115.84 is: 142,290.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,706.79 : 253,497.87 = 103,115.84 : x
  2. Step 2: Convert to fraction form
    183,706.79/253,497.87 = 103,115.84/x
  3. Step 3: Cross multiply
    183,706.79x = 253,497.87 × 103,115.84
  4. Step 4: Simplify right side
    183,706.79x = 26,139,645,803.26
  5. Step 5: Solve for x
    x = 26,139,645,803.26/183,706.79
  6. Step 6: Final answer
    x = 142,290.04

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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.