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Finding the Fourth Proportional to 127,926.40, 191,803.20 and 65,545.60

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Solution

The fourth proportional to 127,926.40, 191,803.20 and 65,545.60 is: 98,274.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,926.40 : 191,803.20 = 65,545.60 : x
  2. Step 2: Convert to fraction form
    127,926.40/191,803.20 = 65,545.60/x
  3. Step 3: Cross multiply
    127,926.40x = 191,803.20 × 65,545.60
  4. Step 4: Simplify right side
    127,926.40x = 12,571,855,825.92
  5. Step 5: Solve for x
    x = 12,571,855,825.92/127,926.40
  6. Step 6: Final answer
    x = 98,274.13

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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.