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Finding the Fourth Proportional to 117,980.34, 162,813.09 and 70,235.34

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Solution

The fourth proportional to 117,980.34, 162,813.09 and 70,235.34 is: 96,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,980.34 : 162,813.09 = 70,235.34 : x
  2. Step 2: Convert to fraction form
    117,980.34/162,813.09 = 70,235.34/x
  3. Step 3: Cross multiply
    117,980.34x = 162,813.09 × 70,235.34
  4. Step 4: Simplify right side
    117,980.34x = 11,435,232,732.60
  5. Step 5: Solve for x
    x = 11,435,232,732.60/117,980.34
  6. Step 6: Final answer
    x = 96,924.90

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1.5x scale

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.