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Finding the Fourth Proportional to 111,720.10, 167,485.73 and 48,492.40

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Solution

The fourth proportional to 111,720.10, 167,485.73 and 48,492.40 is: 72,697.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,720.10 : 167,485.73 = 48,492.40 : x
  2. Step 2: Convert to fraction form
    111,720.10/167,485.73 = 48,492.40/x
  3. Step 3: Cross multiply
    111,720.10x = 167,485.73 × 48,492.40
  4. Step 4: Simplify right side
    111,720.10x = 8,121,785,013.45
  5. Step 5: Solve for x
    x = 8,121,785,013.45/111,720.10
  6. Step 6: Final answer
    x = 72,697.62

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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.