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Finding the Fourth Proportional to 188,544.06, 260,153.50 and 105,760.71

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Solution

The fourth proportional to 188,544.06, 260,153.50 and 105,760.71 is: 145,928.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,544.06 : 260,153.50 = 105,760.71 : x
  2. Step 2: Convert to fraction form
    188,544.06/260,153.50 = 105,760.71/x
  3. Step 3: Cross multiply
    188,544.06x = 260,153.50 × 105,760.71
  4. Step 4: Simplify right side
    188,544.06x = 27,514,018,340.18
  5. Step 5: Solve for x
    x = 27,514,018,340.18/188,544.06
  6. Step 6: Final answer
    x = 145,928.85

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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.