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Finding the Fourth Proportional to 169,901.52, 254,683.94 and 79,782.91

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Solution

The fourth proportional to 169,901.52, 254,683.94 and 79,782.91 is: 119,595.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,901.52 : 254,683.94 = 79,782.91 : x
  2. Step 2: Convert to fraction form
    169,901.52/254,683.94 = 79,782.91/x
  3. Step 3: Cross multiply
    169,901.52x = 254,683.94 × 79,782.91
  4. Step 4: Simplify right side
    169,901.52x = 20,319,425,863.47
  5. Step 5: Solve for x
    x = 20,319,425,863.47/169,901.52
  6. Step 6: Final answer
    x = 119,595.32

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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.