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Finding the Fourth Proportional to 313,479.66, 470,156.60 and 153,486.66

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Solution

The fourth proportional to 313,479.66, 470,156.60 and 153,486.66 is: 230,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,479.66 : 470,156.60 = 153,486.66 : x
  2. Step 2: Convert to fraction form
    313,479.66/470,156.60 = 153,486.66/x
  3. Step 3: Cross multiply
    313,479.66x = 470,156.60 × 153,486.66
  4. Step 4: Simplify right side
    313,479.66x = 72,162,766,210.96
  5. Step 5: Solve for x
    x = 72,162,766,210.96/313,479.66
  6. Step 6: Final answer
    x = 230,199.20

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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.