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Finding the Fourth Proportional to 74,480.40, 111,574.80 and 44,810.10

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Solution

The fourth proportional to 74,480.40, 111,574.80 and 44,810.10 is: 67,127.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,480.40 : 111,574.80 = 44,810.10 : x
  2. Step 2: Convert to fraction form
    74,480.40/111,574.80 = 44,810.10/x
  3. Step 3: Cross multiply
    74,480.40x = 111,574.80 × 44,810.10
  4. Step 4: Simplify right side
    74,480.40x = 4,999,677,945.48
  5. Step 5: Solve for x
    x = 4,999,677,945.48/74,480.40
  6. Step 6: Final answer
    x = 67,127.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.