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Finding the Fourth Proportional to 183,390.50, 253,078.90 and 102,818.18

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Solution

The fourth proportional to 183,390.50, 253,078.90 and 102,818.18 is: 141,889.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,390.50 : 253,078.90 = 102,818.18 : x
  2. Step 2: Convert to fraction form
    183,390.50/253,078.90 = 102,818.18/x
  3. Step 3: Cross multiply
    183,390.50x = 253,078.90 × 102,818.18
  4. Step 4: Simplify right side
    183,390.50x = 26,021,112,270.05
  5. Step 5: Solve for x
    x = 26,021,112,270.05/183,390.50
  6. Step 6: Final answer
    x = 141,889.09

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1.5x scale

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.