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Finding the Fourth Proportional to 224,886.85, 310,343.12 and 122,912.31

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Solution

The fourth proportional to 224,886.85, 310,343.12 and 122,912.31 is: 169,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,886.85 : 310,343.12 = 122,912.31 : x
  2. Step 2: Convert to fraction form
    224,886.85/310,343.12 = 122,912.31/x
  3. Step 3: Cross multiply
    224,886.85x = 310,343.12 × 122,912.31
  4. Step 4: Simplify right side
    224,886.85x = 38,144,989,771.81
  5. Step 5: Solve for x
    x = 38,144,989,771.81/224,886.85
  6. Step 6: Final answer
    x = 169,618.59

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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.