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Finding the Fourth Proportional to 134,866.56, 202,200 and 64,679.04

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Solution

The fourth proportional to 134,866.56, 202,200 and 64,679.04 is: 96,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,866.56 : 202,200 = 64,679.04 : x
  2. Step 2: Convert to fraction form
    134,866.56/202,200 = 64,679.04/x
  3. Step 3: Cross multiply
    134,866.56x = 202,200 × 64,679.04
  4. Step 4: Simplify right side
    134,866.56x = 13,078,101,888
  5. Step 5: Solve for x
    x = 13,078,101,888/134,866.56
  6. Step 6: Final answer
    x = 96,970.68

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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.