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Finding the Fourth Proportional to 376,720.64, 565,158.78 and 124,016.32

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Solution

The fourth proportional to 376,720.64, 565,158.78 and 124,016.32 is: 186,050.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,720.64 : 565,158.78 = 124,016.32 : x
  2. Step 2: Convert to fraction form
    376,720.64/565,158.78 = 124,016.32/x
  3. Step 3: Cross multiply
    376,720.64x = 565,158.78 × 124,016.32
  4. Step 4: Simplify right side
    376,720.64x = 70,088,909,285.50
  5. Step 5: Solve for x
    x = 70,088,909,285.50/376,720.64
  6. Step 6: Final answer
    x = 186,050.09

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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.