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Finding the Fourth Proportional to 112,953.52, 155,894.56 and 62,668.72

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Solution

The fourth proportional to 112,953.52, 155,894.56 and 62,668.72 is: 86,493.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,953.52 : 155,894.56 = 62,668.72 : x
  2. Step 2: Convert to fraction form
    112,953.52/155,894.56 = 62,668.72/x
  3. Step 3: Cross multiply
    112,953.52x = 155,894.56 × 62,668.72
  4. Step 4: Simplify right side
    112,953.52x = 9,769,712,530.16
  5. Step 5: Solve for x
    x = 9,769,712,530.16/112,953.52
  6. Step 6: Final answer
    x = 86,493.21

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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.