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Finding the Fourth Proportional to 98,728.40, 148,114.20 and 32,157.20

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Solution

The fourth proportional to 98,728.40, 148,114.20 and 32,157.20 is: 48,242.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,728.40 : 148,114.20 = 32,157.20 : x
  2. Step 2: Convert to fraction form
    98,728.40/148,114.20 = 32,157.20/x
  3. Step 3: Cross multiply
    98,728.40x = 148,114.20 × 32,157.20
  4. Step 4: Simplify right side
    98,728.40x = 4,762,937,952.24
  5. Step 5: Solve for x
    x = 4,762,937,952.24/98,728.40
  6. Step 6: Final answer
    x = 48,242.84

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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.