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Finding the Fourth Proportional to 74,776.65, 103,192.16 and 41,242.65

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Solution

The fourth proportional to 74,776.65, 103,192.16 and 41,242.65 is: 56,915.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,776.65 : 103,192.16 = 41,242.65 : x
  2. Step 2: Convert to fraction form
    74,776.65/103,192.16 = 41,242.65/x
  3. Step 3: Cross multiply
    74,776.65x = 103,192.16 × 41,242.65
  4. Step 4: Simplify right side
    74,776.65x = 4,255,917,931.41
  5. Step 5: Solve for x
    x = 4,255,917,931.41/74,776.65
  6. Step 6: Final answer
    x = 56,915.07

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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.