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Finding the Fourth Proportional to 152,620.28, 210,610.14 and 84,640.04

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Solution

The fourth proportional to 152,620.28, 210,610.14 and 84,640.04 is: 116,800.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,620.28 : 210,610.14 = 84,640.04 : x
  2. Step 2: Convert to fraction form
    152,620.28/210,610.14 = 84,640.04/x
  3. Step 3: Cross multiply
    152,620.28x = 210,610.14 × 84,640.04
  4. Step 4: Simplify right side
    152,620.28x = 17,826,050,674.01
  5. Step 5: Solve for x
    x = 17,826,050,674.01/152,620.28
  6. Step 6: Final answer
    x = 116,800.01

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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.