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Finding the Fourth Proportional to 92,510.93, 127,668.40 and 52,231.86

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Solution

The fourth proportional to 92,510.93, 127,668.40 and 52,231.86 is: 72,081.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,510.93 : 127,668.40 = 52,231.86 : x
  2. Step 2: Convert to fraction form
    92,510.93/127,668.40 = 52,231.86/x
  3. Step 3: Cross multiply
    92,510.93x = 127,668.40 × 52,231.86
  4. Step 4: Simplify right side
    92,510.93x = 6,668,357,995.22
  5. Step 5: Solve for x
    x = 6,668,357,995.22/92,510.93
  6. Step 6: Final answer
    x = 72,081.84

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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.