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Finding the Fourth Proportional to 99,812.60, 149,718.90 and 97,844.30

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Solution

The fourth proportional to 99,812.60, 149,718.90 and 97,844.30 is: 146,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,812.60 : 149,718.90 = 97,844.30 : x
  2. Step 2: Convert to fraction form
    99,812.60/149,718.90 = 97,844.30/x
  3. Step 3: Cross multiply
    99,812.60x = 149,718.90 × 97,844.30
  4. Step 4: Simplify right side
    99,812.60x = 14,649,140,967.27
  5. Step 5: Solve for x
    x = 14,649,140,967.27/99,812.60
  6. Step 6: Final answer
    x = 146,766.45

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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.