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Finding the Fourth Proportional to 170,089.02, 255,127.86 and 91,357.02

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Solution

The fourth proportional to 170,089.02, 255,127.86 and 91,357.02 is: 137,032.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,089.02 : 255,127.86 = 91,357.02 : x
  2. Step 2: Convert to fraction form
    170,089.02/255,127.86 = 91,357.02/x
  3. Step 3: Cross multiply
    170,089.02x = 255,127.86 × 91,357.02
  4. Step 4: Simplify right side
    170,089.02x = 23,307,721,008.58
  5. Step 5: Solve for x
    x = 23,307,721,008.58/170,089.02
  6. Step 6: Final answer
    x = 137,032.48

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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.