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Finding the Fourth Proportional to 212,692.83, 319,038.32 and 62,934.06

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Solution

The fourth proportional to 212,692.83, 319,038.32 and 62,934.06 is: 94,400.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,692.83 : 319,038.32 = 62,934.06 : x
  2. Step 2: Convert to fraction form
    212,692.83/319,038.32 = 62,934.06/x
  3. Step 3: Cross multiply
    212,692.83x = 319,038.32 × 62,934.06
  4. Step 4: Simplify right side
    212,692.83x = 20,078,376,458.51
  5. Step 5: Solve for x
    x = 20,078,376,458.51/212,692.83
  6. Step 6: Final answer
    x = 94,400.81

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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.