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Finding the Fourth Proportional to 202,606.65, 279,589.65 and 111,960.74

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Solution

The fourth proportional to 202,606.65, 279,589.65 and 111,960.74 is: 154,501.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,606.65 : 279,589.65 = 111,960.74 : x
  2. Step 2: Convert to fraction form
    202,606.65/279,589.65 = 111,960.74/x
  3. Step 3: Cross multiply
    202,606.65x = 279,589.65 × 111,960.74
  4. Step 4: Simplify right side
    202,606.65x = 31,303,064,110.34
  5. Step 5: Solve for x
    x = 31,303,064,110.34/202,606.65
  6. Step 6: Final answer
    x = 154,501.66

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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.