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Finding the Fourth Proportional to 111,346.85, 153,652.12 and 66,029.17

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Solution

The fourth proportional to 111,346.85, 153,652.12 and 66,029.17 is: 91,116.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,346.85 : 153,652.12 = 66,029.17 : x
  2. Step 2: Convert to fraction form
    111,346.85/153,652.12 = 66,029.17/x
  3. Step 3: Cross multiply
    111,346.85x = 153,652.12 × 66,029.17
  4. Step 4: Simplify right side
    111,346.85x = 10,145,521,952.34
  5. Step 5: Solve for x
    x = 10,145,521,952.34/111,346.85
  6. Step 6: Final answer
    x = 91,116.38

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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.