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Finding the Fourth Proportional to 167,492.56, 251,242.08 and 78,697.12

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Solution

The fourth proportional to 167,492.56, 251,242.08 and 78,697.12 is: 118,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,492.56 : 251,242.08 = 78,697.12 : x
  2. Step 2: Convert to fraction form
    167,492.56/251,242.08 = 78,697.12/x
  3. Step 3: Cross multiply
    167,492.56x = 251,242.08 × 78,697.12
  4. Step 4: Simplify right side
    167,492.56x = 19,772,028,118.81
  5. Step 5: Solve for x
    x = 19,772,028,118.81/167,492.56
  6. Step 6: Final answer
    x = 118,047.20

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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.