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Finding the Fourth Proportional to 183,722.74, 253,529.10 and 103,148.80

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Solution

The fourth proportional to 183,722.74, 253,529.10 and 103,148.80 is: 142,340.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,722.74 : 253,529.10 = 103,148.80 : x
  2. Step 2: Convert to fraction form
    183,722.74/253,529.10 = 103,148.80/x
  3. Step 3: Cross multiply
    183,722.74x = 253,529.10 × 103,148.80
  4. Step 4: Simplify right side
    183,722.74x = 26,151,222,430.08
  5. Step 5: Solve for x
    x = 26,151,222,430.08/183,722.74
  6. Step 6: Final answer
    x = 142,340.69

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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.