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Finding the Fourth Proportional to 92,698.06, 127,929.87 and 52,412.21

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Solution

The fourth proportional to 92,698.06, 127,929.87 and 52,412.21 is: 72,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,698.06 : 127,929.87 = 52,412.21 : x
  2. Step 2: Convert to fraction form
    92,698.06/127,929.87 = 52,412.21/x
  3. Step 3: Cross multiply
    92,698.06x = 127,929.87 × 52,412.21
  4. Step 4: Simplify right side
    92,698.06x = 6,705,087,211.71
  5. Step 5: Solve for x
    x = 6,705,087,211.71/92,698.06
  6. Step 6: Final answer
    x = 72,332.55

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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.