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Finding the Fourth Proportional to 162,912.08, 224,609.10 and 105,449.60

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Solution

The fourth proportional to 162,912.08, 224,609.10 and 105,449.60 is: 145,384.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,912.08 : 224,609.10 = 105,449.60 : x
  2. Step 2: Convert to fraction form
    162,912.08/224,609.10 = 105,449.60/x
  3. Step 3: Cross multiply
    162,912.08x = 224,609.10 × 105,449.60
  4. Step 4: Simplify right side
    162,912.08x = 23,684,939,751.36
  5. Step 5: Solve for x
    x = 23,684,939,751.36/162,912.08
  6. Step 6: Final answer
    x = 145,384.80

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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.