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Finding the Fourth Proportional to 382,303.02, 573,331.95 and 126,078.06

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Solution

The fourth proportional to 382,303.02, 573,331.95 and 126,078.06 is: 189,076.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,303.02 : 573,331.95 = 126,078.06 : x
  2. Step 2: Convert to fraction form
    382,303.02/573,331.95 = 126,078.06/x
  3. Step 3: Cross multiply
    382,303.02x = 573,331.95 × 126,078.06
  4. Step 4: Simplify right side
    382,303.02x = 72,284,579,992.02
  5. Step 5: Solve for x
    x = 72,284,579,992.02/382,303.02
  6. Step 6: Final answer
    x = 189,076.66

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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.