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Finding the Fourth Proportional to 375,765.44, 563,639.85 and 91,457.93

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Solution

The fourth proportional to 375,765.44, 563,639.85 and 91,457.93 is: 137,184.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,765.44 : 563,639.85 = 91,457.93 : x
  2. Step 2: Convert to fraction form
    375,765.44/563,639.85 = 91,457.93/x
  3. Step 3: Cross multiply
    375,765.44x = 563,639.85 × 91,457.93
  4. Step 4: Simplify right side
    375,765.44x = 51,549,335,355.61
  5. Step 5: Solve for x
    x = 51,549,335,355.61/375,765.44
  6. Step 6: Final answer
    x = 137,184.88

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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.