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Finding the Fourth Proportional to 127,373.76, 175,779.36 and 73,653.60

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Solution

The fourth proportional to 127,373.76, 175,779.36 and 73,653.60 is: 101,644.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,373.76 : 175,779.36 = 73,653.60 : x
  2. Step 2: Convert to fraction form
    127,373.76/175,779.36 = 73,653.60/x
  3. Step 3: Cross multiply
    127,373.76x = 175,779.36 × 73,653.60
  4. Step 4: Simplify right side
    127,373.76x = 12,946,782,669.70
  5. Step 5: Solve for x
    x = 12,946,782,669.70/127,373.76
  6. Step 6: Final answer
    x = 101,644.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.