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Finding the Fourth Proportional to 103,624.50, 143,001.81 and 58,912.50

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Solution

The fourth proportional to 103,624.50, 143,001.81 and 58,912.50 is: 81,299.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,624.50 : 143,001.81 = 58,912.50 : x
  2. Step 2: Convert to fraction form
    103,624.50/143,001.81 = 58,912.50/x
  3. Step 3: Cross multiply
    103,624.50x = 143,001.81 × 58,912.50
  4. Step 4: Simplify right side
    103,624.50x = 8,424,594,131.63
  5. Step 5: Solve for x
    x = 8,424,594,131.63/103,624.50
  6. Step 6: Final answer
    x = 81,299.25

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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.