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Finding the Fourth Proportional to 185,316.69, 255,737.48 and 100,433.73

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Solution

The fourth proportional to 185,316.69, 255,737.48 and 100,433.73 is: 138,598.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,316.69 : 255,737.48 = 100,433.73 : x
  2. Step 2: Convert to fraction form
    185,316.69/255,737.48 = 100,433.73/x
  3. Step 3: Cross multiply
    185,316.69x = 255,737.48 × 100,433.73
  4. Step 4: Simplify right side
    185,316.69x = 25,684,668,515.03
  5. Step 5: Solve for x
    x = 25,684,668,515.03/185,316.69
  6. Step 6: Final answer
    x = 138,598.79

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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.