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Finding the Fourth Proportional to 103,673.55, 143,033.84 and 62,850.84

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Solution

The fourth proportional to 103,673.55, 143,033.84 and 62,850.84 is: 86,712.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,673.55 : 143,033.84 = 62,850.84 : x
  2. Step 2: Convert to fraction form
    103,673.55/143,033.84 = 62,850.84/x
  3. Step 3: Cross multiply
    103,673.55x = 143,033.84 × 62,850.84
  4. Step 4: Simplify right side
    103,673.55x = 8,989,796,678.17
  5. Step 5: Solve for x
    x = 8,989,796,678.17/103,673.55
  6. Step 6: Final answer
    x = 86,712.54

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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.