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Finding the Fourth Proportional to 76,554.24, 105,635.84 and 43,018.24

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Solution

The fourth proportional to 76,554.24, 105,635.84 and 43,018.24 is: 59,360.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,554.24 : 105,635.84 = 43,018.24 : x
  2. Step 2: Convert to fraction form
    76,554.24/105,635.84 = 43,018.24/x
  3. Step 3: Cross multiply
    76,554.24x = 105,635.84 × 43,018.24
  4. Step 4: Simplify right side
    76,554.24x = 4,544,267,917.72
  5. Step 5: Solve for x
    x = 4,544,267,917.72/76,554.24
  6. Step 6: Final answer
    x = 59,360.11

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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.