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Finding the Fourth Proportional to 46,092.60, 68,985.30 and 42,406.20

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Solution

The fourth proportional to 46,092.60, 68,985.30 and 42,406.20 is: 63,467.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,092.60 : 68,985.30 = 42,406.20 : x
  2. Step 2: Convert to fraction form
    46,092.60/68,985.30 = 42,406.20/x
  3. Step 3: Cross multiply
    46,092.60x = 68,985.30 × 42,406.20
  4. Step 4: Simplify right side
    46,092.60x = 2,925,404,428.86
  5. Step 5: Solve for x
    x = 2,925,404,428.86/46,092.60
  6. Step 6: Final answer
    x = 63,467.98

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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.