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Finding the Fourth Proportional to 188,688.92, 260,374.92 and 111,152.24

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Solution

The fourth proportional to 188,688.92, 260,374.92 and 111,152.24 is: 153,380.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,688.92 : 260,374.92 = 111,152.24 : x
  2. Step 2: Convert to fraction form
    188,688.92/260,374.92 = 111,152.24/x
  3. Step 3: Cross multiply
    188,688.92x = 260,374.92 × 111,152.24
  4. Step 4: Simplify right side
    188,688.92x = 28,941,255,597.82
  5. Step 5: Solve for x
    x = 28,941,255,597.82/188,688.92
  6. Step 6: Final answer
    x = 153,380.79

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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.