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Finding the Fourth Proportional to 236,953.71, 355,448.95 and 79,182.72

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Solution

The fourth proportional to 236,953.71, 355,448.95 and 79,182.72 is: 118,780.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,953.71 : 355,448.95 = 79,182.72 : x
  2. Step 2: Convert to fraction form
    236,953.71/355,448.95 = 79,182.72/x
  3. Step 3: Cross multiply
    236,953.71x = 355,448.95 × 79,182.72
  4. Step 4: Simplify right side
    236,953.71x = 28,145,414,484.19
  5. Step 5: Solve for x
    x = 28,145,414,484.19/236,953.71
  6. Step 6: Final answer
    x = 118,780.22

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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.