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Finding the Fourth Proportional to 224,697.74, 310,075.85 and 122,721.57

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Solution

The fourth proportional to 224,697.74, 310,075.85 and 122,721.57 is: 169,351.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,697.74 : 310,075.85 = 122,721.57 : x
  2. Step 2: Convert to fraction form
    224,697.74/310,075.85 = 122,721.57/x
  3. Step 3: Cross multiply
    224,697.74x = 310,075.85 × 122,721.57
  4. Step 4: Simplify right side
    224,697.74x = 38,052,994,517.48
  5. Step 5: Solve for x
    x = 38,052,994,517.48/224,697.74
  6. Step 6: Final answer
    x = 169,351.93

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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.