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Finding the Fourth Proportional to 235,485.32, 353,201.70 and 64,720.11

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Solution

The fourth proportional to 235,485.32, 353,201.70 and 64,720.11 is: 97,072.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,485.32 : 353,201.70 = 64,720.11 : x
  2. Step 2: Convert to fraction form
    235,485.32/353,201.70 = 64,720.11/x
  3. Step 3: Cross multiply
    235,485.32x = 353,201.70 × 64,720.11
  4. Step 4: Simplify right side
    235,485.32x = 22,859,252,876.19
  5. Step 5: Solve for x
    x = 22,859,252,876.19/235,485.32
  6. Step 6: Final answer
    x = 97,072.94

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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.