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Finding the Fourth Proportional to 190,650.58, 285,999.71 and 57,530.62

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Solution

The fourth proportional to 190,650.58, 285,999.71 and 57,530.62 is: 86,303.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,650.58 : 285,999.71 = 57,530.62 : x
  2. Step 2: Convert to fraction form
    190,650.58/285,999.71 = 57,530.62/x
  3. Step 3: Cross multiply
    190,650.58x = 285,999.71 × 57,530.62
  4. Step 4: Simplify right side
    190,650.58x = 16,453,740,636.12
  5. Step 5: Solve for x
    x = 16,453,740,636.12/190,650.58
  6. Step 6: Final answer
    x = 86,303.12

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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.