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Finding the Fourth Proportional to 103,625.50, 143,003.19 and 58,913.50

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Solution

The fourth proportional to 103,625.50, 143,003.19 and 58,913.50 is: 81,300.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.50 : 143,003.19 = 58,913.50 : x
  2. Step 2: Convert to fraction form
    103,625.50/143,003.19 = 58,913.50/x
  3. Step 3: Cross multiply
    103,625.50x = 143,003.19 × 58,913.50
  4. Step 4: Simplify right side
    103,625.50x = 8,424,818,434.07
  5. Step 5: Solve for x
    x = 8,424,818,434.07/103,625.50
  6. Step 6: Final answer
    x = 81,300.63

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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.