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Finding the Fourth Proportional to 375,391.70, 563,142.48 and 109,117.63

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Solution

The fourth proportional to 375,391.70, 563,142.48 and 109,117.63 is: 163,692.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,391.70 : 563,142.48 = 109,117.63 : x
  2. Step 2: Convert to fraction form
    375,391.70/563,142.48 = 109,117.63/x
  3. Step 3: Cross multiply
    375,391.70x = 563,142.48 × 109,117.63
  4. Step 4: Simplify right side
    375,391.70x = 61,448,773,064.66
  5. Step 5: Solve for x
    x = 61,448,773,064.66/375,391.70
  6. Step 6: Final answer
    x = 163,692.41

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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.