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Finding the Fourth Proportional to 185,641.56, 256,185.59 and 100,758.65

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Solution

The fourth proportional to 185,641.56, 256,185.59 and 100,758.65 is: 139,047.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,641.56 : 256,185.59 = 100,758.65 : x
  2. Step 2: Convert to fraction form
    185,641.56/256,185.59 = 100,758.65/x
  3. Step 3: Cross multiply
    185,641.56x = 256,185.59 × 100,758.65
  4. Step 4: Simplify right side
    185,641.56x = 25,812,912,413.13
  5. Step 5: Solve for x
    x = 25,812,912,413.13/185,641.56
  6. Step 6: Final answer
    x = 139,047.06

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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.