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Finding the Fourth Proportional to 181,620.86, 250,632.86 and 105,143.18

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Solution

The fourth proportional to 181,620.86, 250,632.86 and 105,143.18 is: 145,095.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,620.86 : 250,632.86 = 105,143.18 : x
  2. Step 2: Convert to fraction form
    181,620.86/250,632.86 = 105,143.18/x
  3. Step 3: Cross multiply
    181,620.86x = 250,632.86 × 105,143.18
  4. Step 4: Simplify right side
    181,620.86x = 26,352,334,134.01
  5. Step 5: Solve for x
    x = 26,352,334,134.01/181,620.86
  6. Step 6: Final answer
    x = 145,095.31

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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.