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Finding the Fourth Proportional to 103,569.66, 155,020.36 and 53,580.92

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Solution

The fourth proportional to 103,569.66, 155,020.36 and 53,580.92 is: 80,198.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,569.66 : 155,020.36 = 53,580.92 : x
  2. Step 2: Convert to fraction form
    103,569.66/155,020.36 = 53,580.92/x
  3. Step 3: Cross multiply
    103,569.66x = 155,020.36 × 53,580.92
  4. Step 4: Simplify right side
    103,569.66x = 8,306,133,507.53
  5. Step 5: Solve for x
    x = 8,306,133,507.53/103,569.66
  6. Step 6: Final answer
    x = 80,198.52

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1.5x scale

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.