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Finding the Fourth Proportional to 313,483.12, 470,161.81 and 153,490.12

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Solution

The fourth proportional to 313,483.12, 470,161.81 and 153,490.12 is: 230,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,483.12 : 470,161.81 = 153,490.12 : x
  2. Step 2: Convert to fraction form
    313,483.12/470,161.81 = 153,490.12/x
  3. Step 3: Cross multiply
    313,483.12x = 470,161.81 × 153,490.12
  4. Step 4: Simplify right side
    313,483.12x = 72,165,192,636.32
  5. Step 5: Solve for x
    x = 72,165,192,636.32/313,483.12
  6. Step 6: Final answer
    x = 230,204.40

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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.