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Finding the Fourth Proportional to 236,692.40, 355,297.80 and 131,716.40

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Solution

The fourth proportional to 236,692.40, 355,297.80 and 131,716.40 is: 197,718.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,692.40 : 355,297.80 = 131,716.40 : x
  2. Step 2: Convert to fraction form
    236,692.40/355,297.80 = 131,716.40/x
  3. Step 3: Cross multiply
    236,692.40x = 355,297.80 × 131,716.40
  4. Step 4: Simplify right side
    236,692.40x = 46,798,547,143.92
  5. Step 5: Solve for x
    x = 46,798,547,143.92/236,692.40
  6. Step 6: Final answer
    x = 197,718.84

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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.