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Finding the Fourth Proportional to 188,892.55, 260,726.68 and 150,916.51

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Solution

The fourth proportional to 188,892.55, 260,726.68 and 150,916.51 is: 208,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,892.55 : 260,726.68 = 150,916.51 : x
  2. Step 2: Convert to fraction form
    188,892.55/260,726.68 = 150,916.51/x
  3. Step 3: Cross multiply
    188,892.55x = 260,726.68 × 150,916.51
  4. Step 4: Simplify right side
    188,892.55x = 39,347,961,124.04
  5. Step 5: Solve for x
    x = 39,347,961,124.04/188,892.55
  6. Step 6: Final answer
    x = 208,308.70

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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.