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Finding the Fourth Proportional to 66,275.65, 91,430.67 and 44,758.41

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Solution

The fourth proportional to 66,275.65, 91,430.67 and 44,758.41 is: 61,746.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,275.65 : 91,430.67 = 44,758.41 : x
  2. Step 2: Convert to fraction form
    66,275.65/91,430.67 = 44,758.41/x
  3. Step 3: Cross multiply
    66,275.65x = 91,430.67 × 44,758.41
  4. Step 4: Simplify right side
    66,275.65x = 4,092,291,239.41
  5. Step 5: Solve for x
    x = 4,092,291,239.41/66,275.65
  6. Step 6: Final answer
    x = 61,746.53

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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.