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Finding the Fourth Proportional to 152,703.45, 210,786.71 and 92,276.37

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Solution

The fourth proportional to 152,703.45, 210,786.71 and 92,276.37 is: 127,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,703.45 : 210,786.71 = 92,276.37 : x
  2. Step 2: Convert to fraction form
    152,703.45/210,786.71 = 92,276.37/x
  3. Step 3: Cross multiply
    152,703.45x = 210,786.71 × 92,276.37
  4. Step 4: Simplify right side
    152,703.45x = 19,450,631,981.66
  5. Step 5: Solve for x
    x = 19,450,631,981.66/152,703.45
  6. Step 6: Final answer
    x = 127,375.20

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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.