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Finding the Fourth Proportional to 375,506.80, 563,250.36 and 126,188.72

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Solution

The fourth proportional to 375,506.80, 563,250.36 and 126,188.72 is: 189,279.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,506.80 : 563,250.36 = 126,188.72 : x
  2. Step 2: Convert to fraction form
    375,506.80/563,250.36 = 126,188.72/x
  3. Step 3: Cross multiply
    375,506.80x = 563,250.36 × 126,188.72
  4. Step 4: Simplify right side
    375,506.80x = 71,075,841,967.94
  5. Step 5: Solve for x
    x = 71,075,841,967.94/375,506.80
  6. Step 6: Final answer
    x = 189,279.77

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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.