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Finding the Fourth Proportional to 162,485.90, 243,728.16 and 44,156.90

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Solution

The fourth proportional to 162,485.90, 243,728.16 and 44,156.90 is: 66,235.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,485.90 : 243,728.16 = 44,156.90 : x
  2. Step 2: Convert to fraction form
    162,485.90/243,728.16 = 44,156.90/x
  3. Step 3: Cross multiply
    162,485.90x = 243,728.16 × 44,156.90
  4. Step 4: Simplify right side
    162,485.90x = 10,762,279,433.64
  5. Step 5: Solve for x
    x = 10,762,279,433.64/162,485.90
  6. Step 6: Final answer
    x = 66,235.16

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1.5x scale

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.