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Finding the Fourth Proportional to 375,503.92, 563,251 and 91,196.80

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Solution

The fourth proportional to 375,503.92, 563,251 and 91,196.80 is: 136,794.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,503.92 : 563,251 = 91,196.80 : x
  2. Step 2: Convert to fraction form
    375,503.92/563,251 = 91,196.80/x
  3. Step 3: Cross multiply
    375,503.92x = 563,251 × 91,196.80
  4. Step 4: Simplify right side
    375,503.92x = 51,366,688,796.80
  5. Step 5: Solve for x
    x = 51,366,688,796.80/375,503.92
  6. Step 6: Final answer
    x = 136,794.01

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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.