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Finding the Fourth Proportional to 243,643.20, 365,464.80 and 168,847.80

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Solution

The fourth proportional to 243,643.20, 365,464.80 and 168,847.80 is: 253,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,643.20 : 365,464.80 = 168,847.80 : x
  2. Step 2: Convert to fraction form
    243,643.20/365,464.80 = 168,847.80/x
  3. Step 3: Cross multiply
    243,643.20x = 365,464.80 × 168,847.80
  4. Step 4: Simplify right side
    243,643.20x = 61,707,927,457.44
  5. Step 5: Solve for x
    x = 61,707,927,457.44/243,643.20
  6. Step 6: Final answer
    x = 253,271.70

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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.