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Finding the Fourth Proportional to 152,661.86, 210,668.34 and 92,221.94

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Solution

The fourth proportional to 152,661.86, 210,668.34 and 92,221.94 is: 127,263.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,661.86 : 210,668.34 = 92,221.94 : x
  2. Step 2: Convert to fraction form
    152,661.86/210,668.34 = 92,221.94/x
  3. Step 3: Cross multiply
    152,661.86x = 210,668.34 × 92,221.94
  4. Step 4: Simplify right side
    152,661.86x = 19,428,243,883.88
  5. Step 5: Solve for x
    x = 19,428,243,883.88/152,661.86
  6. Step 6: Final answer
    x = 127,263.24

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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.