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Finding the Fourth Proportional to 188,564.67, 260,219.61 and 103,681.77

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Solution

The fourth proportional to 188,564.67, 260,219.61 and 103,681.77 is: 143,081.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,564.67 : 260,219.61 = 103,681.77 : x
  2. Step 2: Convert to fraction form
    188,564.67/260,219.61 = 103,681.77/x
  3. Step 3: Cross multiply
    188,564.67x = 260,219.61 × 103,681.77
  4. Step 4: Simplify right side
    188,564.67x = 26,980,029,753.51
  5. Step 5: Solve for x
    x = 26,980,029,753.51/188,564.67
  6. Step 6: Final answer
    x = 143,081.04

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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.