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Finding the Fourth Proportional to 127,852.80, 191,702.40 and 65,644.80

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Solution

The fourth proportional to 127,852.80, 191,702.40 and 65,644.80 is: 98,427.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,852.80 : 191,702.40 = 65,644.80 : x
  2. Step 2: Convert to fraction form
    127,852.80/191,702.40 = 65,644.80/x
  3. Step 3: Cross multiply
    127,852.80x = 191,702.40 × 65,644.80
  4. Step 4: Simplify right side
    127,852.80x = 12,584,265,707.52
  5. Step 5: Solve for x
    x = 12,584,265,707.52/127,852.80
  6. Step 6: Final answer
    x = 98,427.77

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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.