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Finding the Fourth Proportional to 127,948.40, 192,018.60 and 65,586.80

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Solution

The fourth proportional to 127,948.40, 192,018.60 and 65,586.80 is: 98,429.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,948.40 : 192,018.60 = 65,586.80 : x
  2. Step 2: Convert to fraction form
    127,948.40/192,018.60 = 65,586.80/x
  3. Step 3: Cross multiply
    127,948.40x = 192,018.60 × 65,586.80
  4. Step 4: Simplify right side
    127,948.40x = 12,593,885,514.48
  5. Step 5: Solve for x
    x = 12,593,885,514.48/127,948.40
  6. Step 6: Final answer
    x = 98,429.41

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1.5x scale

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.