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Finding the Fourth Proportional to 188,526.84, 260,168.78 and 103,644.52

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Solution

The fourth proportional to 188,526.84, 260,168.78 and 103,644.52 is: 143,030.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,526.84 : 260,168.78 = 103,644.52 : x
  2. Step 2: Convert to fraction form
    188,526.84/260,168.78 = 103,644.52/x
  3. Step 3: Cross multiply
    188,526.84x = 260,168.78 × 103,644.52
  4. Step 4: Simplify right side
    188,526.84x = 26,965,068,322.09
  5. Step 5: Solve for x
    x = 26,965,068,322.09/188,526.84
  6. Step 6: Final answer
    x = 143,030.39

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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.