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Finding the Fourth Proportional to 188,636.40, 260,319.90 and 102,596.16

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Solution

The fourth proportional to 188,636.40, 260,319.90 and 102,596.16 is: 141,583.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,636.40 : 260,319.90 = 102,596.16 : x
  2. Step 2: Convert to fraction form
    188,636.40/260,319.90 = 102,596.16/x
  3. Step 3: Cross multiply
    188,636.40x = 260,319.90 × 102,596.16
  4. Step 4: Simplify right side
    188,636.40x = 26,707,822,111.58
  5. Step 5: Solve for x
    x = 26,707,822,111.58/188,636.40
  6. Step 6: Final answer
    x = 141,583.61

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1.5x scale

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.