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Finding the Fourth Proportional to 61,506.20, 92,259.30 and 42,479.30

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Solution

The fourth proportional to 61,506.20, 92,259.30 and 42,479.30 is: 63,718.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,506.20 : 92,259.30 = 42,479.30 : x
  2. Step 2: Convert to fraction form
    61,506.20/92,259.30 = 42,479.30/x
  3. Step 3: Cross multiply
    61,506.20x = 92,259.30 × 42,479.30
  4. Step 4: Simplify right side
    61,506.20x = 3,919,110,482.49
  5. Step 5: Solve for x
    x = 3,919,110,482.49/61,506.20
  6. Step 6: Final answer
    x = 63,718.95

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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.