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Finding the Fourth Proportional to 223,856.69, 308,837.57 and 143,271.20

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Solution

The fourth proportional to 223,856.69, 308,837.57 and 143,271.20 is: 197,660.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,856.69 : 308,837.57 = 143,271.20 : x
  2. Step 2: Convert to fraction form
    223,856.69/308,837.57 = 143,271.20/x
  3. Step 3: Cross multiply
    223,856.69x = 308,837.57 × 143,271.20
  4. Step 4: Simplify right side
    223,856.69x = 44,247,529,314.72
  5. Step 5: Solve for x
    x = 44,247,529,314.72/223,856.69
  6. Step 6: Final answer
    x = 197,660.08

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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.