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Finding the Fourth Proportional to 181,779.39, 250,790.62 and 105,256.71

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Solution

The fourth proportional to 181,779.39, 250,790.62 and 105,256.71 is: 145,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,779.39 : 250,790.62 = 105,256.71 : x
  2. Step 2: Convert to fraction form
    181,779.39/250,790.62 = 105,256.71/x
  3. Step 3: Cross multiply
    181,779.39x = 250,790.62 × 105,256.71
  4. Step 4: Simplify right side
    181,779.39x = 26,397,395,560.06
  5. Step 5: Solve for x
    x = 26,397,395,560.06/181,779.39
  6. Step 6: Final answer
    x = 145,216.66

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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.