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Finding the Fourth Proportional to 188,595.68, 260,254.80 and 103,707.68

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Solution

The fourth proportional to 188,595.68, 260,254.80 and 103,707.68 is: 143,112.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,595.68 : 260,254.80 = 103,707.68 : x
  2. Step 2: Convert to fraction form
    188,595.68/260,254.80 = 103,707.68/x
  3. Step 3: Cross multiply
    188,595.68x = 260,254.80 × 103,707.68
  4. Step 4: Simplify right side
    188,595.68x = 26,990,421,516.86
  5. Step 5: Solve for x
    x = 26,990,421,516.86/188,595.68
  6. Step 6: Final answer
    x = 143,112.62

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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.