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Finding the Fourth Proportional to 127,111.68, 190,529.28 and 53,153.28

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Solution

The fourth proportional to 127,111.68, 190,529.28 and 53,153.28 is: 79,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,111.68 : 190,529.28 = 53,153.28 : x
  2. Step 2: Convert to fraction form
    127,111.68/190,529.28 = 53,153.28/x
  3. Step 3: Cross multiply
    127,111.68x = 190,529.28 × 53,153.28
  4. Step 4: Simplify right side
    127,111.68x = 10,127,256,168.04
  5. Step 5: Solve for x
    x = 10,127,256,168.04/127,111.68
  6. Step 6: Final answer
    x = 79,672.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.