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Finding the Fourth Proportional to 191,476.65, 264,065.76 and 119,863.20

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Solution

The fourth proportional to 191,476.65, 264,065.76 and 119,863.20 is: 165,303.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,476.65 : 264,065.76 = 119,863.20 : x
  2. Step 2: Convert to fraction form
    191,476.65/264,065.76 = 119,863.20/x
  3. Step 3: Cross multiply
    191,476.65x = 264,065.76 × 119,863.20
  4. Step 4: Simplify right side
    191,476.65x = 31,651,767,004.03
  5. Step 5: Solve for x
    x = 31,651,767,004.03/191,476.65
  6. Step 6: Final answer
    x = 165,303.53

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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.