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Finding the Fourth Proportional to 85,364.10, 119,684.70 and 85,364.10

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Solution

The fourth proportional to 85,364.10, 119,684.70 and 85,364.10 is: 119,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,364.10 : 119,684.70 = 85,364.10 : x
  2. Step 2: Convert to fraction form
    85,364.10/119,684.70 = 85,364.10/x
  3. Step 3: Cross multiply
    85,364.10x = 119,684.70 × 85,364.10
  4. Step 4: Simplify right side
    85,364.10x = 10,216,776,699.27
  5. Step 5: Solve for x
    x = 10,216,776,699.27/85,364.10
  6. Step 6: Final answer
    x = 119,684.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.