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Finding the Fourth Proportional to 74,951.70, 103,433.28 and 41,417.70

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Solution

The fourth proportional to 74,951.70, 103,433.28 and 41,417.70 is: 57,156.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,951.70 : 103,433.28 = 41,417.70 : x
  2. Step 2: Convert to fraction form
    74,951.70/103,433.28 = 41,417.70/x
  3. Step 3: Cross multiply
    74,951.70x = 103,433.28 × 41,417.70
  4. Step 4: Simplify right side
    74,951.70x = 4,283,968,561.06
  5. Step 5: Solve for x
    x = 4,283,968,561.06/74,951.70
  6. Step 6: Final answer
    x = 57,156.39

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1.5x scale

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.