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Finding the Fourth Proportional to 66,246.95, 91,412.50 and 44,783.40

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Solution

The fourth proportional to 66,246.95, 91,412.50 and 44,783.40 is: 61,795.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,246.95 : 91,412.50 = 44,783.40 : x
  2. Step 2: Convert to fraction form
    66,246.95/91,412.50 = 44,783.40/x
  3. Step 3: Cross multiply
    66,246.95x = 91,412.50 × 44,783.40
  4. Step 4: Simplify right side
    66,246.95x = 4,093,762,545.94
  5. Step 5: Solve for x
    x = 4,093,762,545.94/66,246.95
  6. Step 6: Final answer
    x = 61,795.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.