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Finding the Fourth Proportional to 376,711.86, 565,005.69 and 123,995.64

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Solution

The fourth proportional to 376,711.86, 565,005.69 and 123,995.64 is: 185,973.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,711.86 : 565,005.69 = 123,995.64 : x
  2. Step 2: Convert to fraction form
    376,711.86/565,005.69 = 123,995.64/x
  3. Step 3: Cross multiply
    376,711.86x = 565,005.69 × 123,995.64
  4. Step 4: Simplify right side
    376,711.86x = 70,058,242,135.19
  5. Step 5: Solve for x
    x = 70,058,242,135.19/376,711.86
  6. Step 6: Final answer
    x = 185,973.02

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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.