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Finding the Fourth Proportional to 169,455.73, 253,782.80 and 147,147.93

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Solution

The fourth proportional to 169,455.73, 253,782.80 and 147,147.93 is: 220,373.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,455.73 : 253,782.80 = 147,147.93 : x
  2. Step 2: Convert to fraction form
    169,455.73/253,782.80 = 147,147.93/x
  3. Step 3: Cross multiply
    169,455.73x = 253,782.80 × 147,147.93
  4. Step 4: Simplify right side
    169,455.73x = 37,343,613,689.60
  5. Step 5: Solve for x
    x = 37,343,613,689.60/169,455.73
  6. Step 6: Final answer
    x = 220,373.86

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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.