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Finding the Fourth Proportional to 195,392.71, 292,935.96 and 77,152.56

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Solution

The fourth proportional to 195,392.71, 292,935.96 and 77,152.56 is: 115,668.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,392.71 : 292,935.96 = 77,152.56 : x
  2. Step 2: Convert to fraction form
    195,392.71/292,935.96 = 77,152.56/x
  3. Step 3: Cross multiply
    195,392.71x = 292,935.96 × 77,152.56
  4. Step 4: Simplify right side
    195,392.71x = 22,600,758,111.95
  5. Step 5: Solve for x
    x = 22,600,758,111.95/195,392.71
  6. Step 6: Final answer
    x = 115,668.38

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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.