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Finding the Fourth Proportional to 159,810.10, 239,549.10 and 64,999.60

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Solution

The fourth proportional to 159,810.10, 239,549.10 and 64,999.60 is: 97,431.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,810.10 : 239,549.10 = 64,999.60 : x
  2. Step 2: Convert to fraction form
    159,810.10/239,549.10 = 64,999.60/x
  3. Step 3: Cross multiply
    159,810.10x = 239,549.10 × 64,999.60
  4. Step 4: Simplify right side
    159,810.10x = 15,570,595,680.36
  5. Step 5: Solve for x
    x = 15,570,595,680.36/159,810.10
  6. Step 6: Final answer
    x = 97,431.86

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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.