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Finding the Fourth Proportional to 74,674.01, 103,048.71 and 40,683.17

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Solution

The fourth proportional to 74,674.01, 103,048.71 and 40,683.17 is: 56,142.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,674.01 : 103,048.71 = 40,683.17 : x
  2. Step 2: Convert to fraction form
    74,674.01/103,048.71 = 40,683.17/x
  3. Step 3: Cross multiply
    74,674.01x = 103,048.71 × 40,683.17
  4. Step 4: Simplify right side
    74,674.01x = 4,192,347,671.97
  5. Step 5: Solve for x
    x = 4,192,347,671.97/74,674.01
  6. Step 6: Final answer
    x = 56,142.00

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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.