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Finding the Fourth Proportional to 66,233.65, 91,386.88 and 44,762.78

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Solution

The fourth proportional to 66,233.65, 91,386.88 and 44,762.78 is: 61,762.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,233.65 : 91,386.88 = 44,762.78 : x
  2. Step 2: Convert to fraction form
    66,233.65/91,386.88 = 44,762.78/x
  3. Step 3: Cross multiply
    66,233.65x = 91,386.88 × 44,762.78
  4. Step 4: Simplify right side
    66,233.65x = 4,090,730,804.33
  5. Step 5: Solve for x
    x = 4,090,730,804.33/66,233.65
  6. Step 6: Final answer
    x = 61,762.12

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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.