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Finding the Fourth Proportional to 181,779.51, 272,528.77 and 91,775.91

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Solution

The fourth proportional to 181,779.51, 272,528.77 and 91,775.91 is: 137,592.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,779.51 : 272,528.77 = 91,775.91 : x
  2. Step 2: Convert to fraction form
    181,779.51/272,528.77 = 91,775.91/x
  3. Step 3: Cross multiply
    181,779.51x = 272,528.77 × 91,775.91
  4. Step 4: Simplify right side
    181,779.51x = 25,011,575,867.93
  5. Step 5: Solve for x
    x = 25,011,575,867.93/181,779.51
  6. Step 6: Final answer
    x = 137,592.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.