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Finding the Fourth Proportional to 61,398.90, 92,098.35 and 45,846.90

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Solution

The fourth proportional to 61,398.90, 92,098.35 and 45,846.90 is: 68,770.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,398.90 : 92,098.35 = 45,846.90 : x
  2. Step 2: Convert to fraction form
    61,398.90/92,098.35 = 45,846.90/x
  3. Step 3: Cross multiply
    61,398.90x = 92,098.35 × 45,846.90
  4. Step 4: Simplify right side
    61,398.90x = 4,222,423,842.62
  5. Step 5: Solve for x
    x = 4,222,423,842.62/61,398.90
  6. Step 6: Final answer
    x = 68,770.35

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1.5x scale

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.