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Finding the Fourth Proportional to 61,406.70, 92,110.05 and 45,854.70

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Solution

The fourth proportional to 61,406.70, 92,110.05 and 45,854.70 is: 68,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,406.70 : 92,110.05 = 45,854.70 : x
  2. Step 2: Convert to fraction form
    61,406.70/92,110.05 = 45,854.70/x
  3. Step 3: Cross multiply
    61,406.70x = 92,110.05 × 45,854.70
  4. Step 4: Simplify right side
    61,406.70x = 4,223,678,709.74
  5. Step 5: Solve for x
    x = 4,223,678,709.74/61,406.70
  6. Step 6: Final answer
    x = 68,782.05

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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.