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Finding the Fourth Proportional to 508,340.42, 762,516.11 and 153,357.52

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Solution

The fourth proportional to 508,340.42, 762,516.11 and 153,357.52 is: 230,037.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,340.42 : 762,516.11 = 153,357.52 : x
  2. Step 2: Convert to fraction form
    508,340.42/762,516.11 = 153,357.52/x
  3. Step 3: Cross multiply
    508,340.42x = 762,516.11 × 153,357.52
  4. Step 4: Simplify right side
    508,340.42x = 116,937,579,589.65
  5. Step 5: Solve for x
    x = 116,937,579,589.65/508,340.42
  6. Step 6: Final answer
    x = 230,037.93

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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.