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Finding the Fourth Proportional to 185,699.96, 256,265.95 and 100,817.03

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Solution

The fourth proportional to 185,699.96, 256,265.95 and 100,817.03 is: 139,127.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,699.96 : 256,265.95 = 100,817.03 : x
  2. Step 2: Convert to fraction form
    185,699.96/256,265.95 = 100,817.03/x
  3. Step 3: Cross multiply
    185,699.96x = 256,265.95 × 100,817.03
  4. Step 4: Simplify right side
    185,699.96x = 25,835,970,183.71
  5. Step 5: Solve for x
    x = 25,835,970,183.71/185,699.96
  6. Step 6: Final answer
    x = 139,127.49

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1.5x scale

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.