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Finding the Fourth Proportional to 348,685.16, 523,115.58 and 99,366.44

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Solution

The fourth proportional to 348,685.16, 523,115.58 and 99,366.44 is: 149,074.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,685.16 : 523,115.58 = 99,366.44 : x
  2. Step 2: Convert to fraction form
    348,685.16/523,115.58 = 99,366.44/x
  3. Step 3: Cross multiply
    348,685.16x = 523,115.58 × 99,366.44
  4. Step 4: Simplify right side
    348,685.16x = 51,980,132,893.14
  5. Step 5: Solve for x
    x = 51,980,132,893.14/348,685.16
  6. Step 6: Final answer
    x = 149,074.69

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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.