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Finding the Fourth Proportional to 183,720.07, 275,580.30 and 72,912.07

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Solution

The fourth proportional to 183,720.07, 275,580.30 and 72,912.07 is: 109,368.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,720.07 : 275,580.30 = 72,912.07 : x
  2. Step 2: Convert to fraction form
    183,720.07/275,580.30 = 72,912.07/x
  3. Step 3: Cross multiply
    183,720.07x = 275,580.30 × 72,912.07
  4. Step 4: Simplify right side
    183,720.07x = 20,093,128,746.32
  5. Step 5: Solve for x
    x = 20,093,128,746.32/183,720.07
  6. Step 6: Final answer
    x = 109,368.18

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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.