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Finding the Fourth Proportional to 61,803.60, 92,705.40 and 30,699.60

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Solution

The fourth proportional to 61,803.60, 92,705.40 and 30,699.60 is: 46,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,803.60 : 92,705.40 = 30,699.60 : x
  2. Step 2: Convert to fraction form
    61,803.60/92,705.40 = 30,699.60/x
  3. Step 3: Cross multiply
    61,803.60x = 92,705.40 × 30,699.60
  4. Step 4: Simplify right side
    61,803.60x = 2,846,018,697.84
  5. Step 5: Solve for x
    x = 2,846,018,697.84/61,803.60
  6. Step 6: Final answer
    x = 46,049.40

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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.