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Finding the Fourth Proportional to 127,956.40, 192,030.60 and 65,594.80

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Solution

The fourth proportional to 127,956.40, 192,030.60 and 65,594.80 is: 98,441.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,956.40 : 192,030.60 = 65,594.80 : x
  2. Step 2: Convert to fraction form
    127,956.40/192,030.60 = 65,594.80/x
  3. Step 3: Cross multiply
    127,956.40x = 192,030.60 × 65,594.80
  4. Step 4: Simplify right side
    127,956.40x = 12,596,208,800.88
  5. Step 5: Solve for x
    x = 12,596,208,800.88/127,956.40
  6. Step 6: Final answer
    x = 98,441.41

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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.