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Finding the Fourth Proportional to 90,558.81, 135,852.80 and 37,973.61

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Solution

The fourth proportional to 90,558.81, 135,852.80 and 37,973.61 is: 56,966.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,558.81 : 135,852.80 = 37,973.61 : x
  2. Step 2: Convert to fraction form
    90,558.81/135,852.80 = 37,973.61/x
  3. Step 3: Cross multiply
    90,558.81x = 135,852.80 × 37,973.61
  4. Step 4: Simplify right side
    90,558.81x = 5,158,821,054.74
  5. Step 5: Solve for x
    x = 5,158,821,054.74/90,558.81
  6. Step 6: Final answer
    x = 56,966.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.