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Finding the Fourth Proportional to 188,636.76, 260,316.14 and 102,593.87

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Solution

The fourth proportional to 188,636.76, 260,316.14 and 102,593.87 is: 141,578.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,636.76 : 260,316.14 = 102,593.87 : x
  2. Step 2: Convert to fraction form
    188,636.76/260,316.14 = 102,593.87/x
  3. Step 3: Cross multiply
    188,636.76x = 260,316.14 × 102,593.87
  4. Step 4: Simplify right side
    188,636.76x = 26,706,838,411.51
  5. Step 5: Solve for x
    x = 26,706,838,411.51/188,636.76
  6. Step 6: Final answer
    x = 141,578.12

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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.