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Finding the Fourth Proportional to 171,897.94, 257,841.21 and 70,692.49

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Solution

The fourth proportional to 171,897.94, 257,841.21 and 70,692.49 is: 106,036.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,897.94 : 257,841.21 = 70,692.49 : x
  2. Step 2: Convert to fraction form
    171,897.94/257,841.21 = 70,692.49/x
  3. Step 3: Cross multiply
    171,897.94x = 257,841.21 × 70,692.49
  4. Step 4: Simplify right side
    171,897.94x = 18,227,437,159.51
  5. Step 5: Solve for x
    x = 18,227,437,159.51/171,897.94
  6. Step 6: Final answer
    x = 106,036.39

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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.