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Finding the Fourth Proportional to 224,735.03, 310,135.40 and 122,761.90

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Solution

The fourth proportional to 224,735.03, 310,135.40 and 122,761.90 is: 169,412.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,735.03 : 310,135.40 = 122,761.90 : x
  2. Step 2: Convert to fraction form
    224,735.03/310,135.40 = 122,761.90/x
  3. Step 3: Cross multiply
    224,735.03x = 310,135.40 × 122,761.90
  4. Step 4: Simplify right side
    224,735.03x = 38,072,810,347.45
  5. Step 5: Solve for x
    x = 38,072,810,347.45/224,735.03
  6. Step 6: Final answer
    x = 169,412.00

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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.