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Finding the Fourth Proportional to 540,803.96, 811,143.98 and 141,483.28

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Solution

The fourth proportional to 540,803.96, 811,143.98 and 141,483.28 is: 212,208.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,803.96 : 811,143.98 = 141,483.28 : x
  2. Step 2: Convert to fraction form
    540,803.96/811,143.98 = 141,483.28/x
  3. Step 3: Cross multiply
    540,803.96x = 811,143.98 × 141,483.28
  4. Step 4: Simplify right side
    540,803.96x = 114,763,310,842.65
  5. Step 5: Solve for x
    x = 114,763,310,842.65/540,803.96
  6. Step 6: Final answer
    x = 212,208.71

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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.