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Finding the Fourth Proportional to 96,343.20, 144,612.72 and 70,099.20

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Solution

The fourth proportional to 96,343.20, 144,612.72 and 70,099.20 is: 105,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,343.20 : 144,612.72 = 70,099.20 : x
  2. Step 2: Convert to fraction form
    96,343.20/144,612.72 = 70,099.20/x
  3. Step 3: Cross multiply
    96,343.20x = 144,612.72 × 70,099.20
  4. Step 4: Simplify right side
    96,343.20x = 10,137,235,981.82
  5. Step 5: Solve for x
    x = 10,137,235,981.82/96,343.20
  6. Step 6: Final answer
    x = 105,220.05

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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.