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Finding the Fourth Proportional to 157,072.26, 216,743.54 and 93,397.76

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Solution

The fourth proportional to 157,072.26, 216,743.54 and 93,397.76 is: 128,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,072.26 : 216,743.54 = 93,397.76 : x
  2. Step 2: Convert to fraction form
    157,072.26/216,743.54 = 93,397.76/x
  3. Step 3: Cross multiply
    157,072.26x = 216,743.54 × 93,397.76
  4. Step 4: Simplify right side
    157,072.26x = 20,243,361,130.47
  5. Step 5: Solve for x
    x = 20,243,361,130.47/157,072.26
  6. Step 6: Final answer
    x = 128,879.29

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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.