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Finding the Fourth Proportional to 127,295.70, 190,943.55 and 97,862.10

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Solution

The fourth proportional to 127,295.70, 190,943.55 and 97,862.10 is: 146,793.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,295.70 : 190,943.55 = 97,862.10 : x
  2. Step 2: Convert to fraction form
    127,295.70/190,943.55 = 97,862.10/x
  3. Step 3: Cross multiply
    127,295.70x = 190,943.55 × 97,862.10
  4. Step 4: Simplify right side
    127,295.70x = 18,686,136,784.46
  5. Step 5: Solve for x
    x = 18,686,136,784.46/127,295.70
  6. Step 6: Final answer
    x = 146,793.15

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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.