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Finding the Fourth Proportional to 127,422.84, 190,718.30 and 93,679.98

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Solution

The fourth proportional to 127,422.84, 190,718.30 and 93,679.98 is: 140,214.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,422.84 : 190,718.30 = 93,679.98 : x
  2. Step 2: Convert to fraction form
    127,422.84/190,718.30 = 93,679.98/x
  3. Step 3: Cross multiply
    127,422.84x = 190,718.30 × 93,679.98
  4. Step 4: Simplify right side
    127,422.84x = 17,866,486,061.23
  5. Step 5: Solve for x
    x = 17,866,486,061.23/127,422.84
  6. Step 6: Final answer
    x = 140,214.16

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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.