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Finding the Fourth Proportional to 540,562.84, 810,788.90 and 141,151.71

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Solution

The fourth proportional to 540,562.84, 810,788.90 and 141,151.71 is: 211,713.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,562.84 : 810,788.90 = 141,151.71 : x
  2. Step 2: Convert to fraction form
    540,562.84/810,788.90 = 141,151.71/x
  3. Step 3: Cross multiply
    540,562.84x = 810,788.90 × 141,151.71
  4. Step 4: Simplify right side
    540,562.84x = 114,444,243,011.19
  5. Step 5: Solve for x
    x = 114,444,243,011.19/540,562.84
  6. Step 6: Final answer
    x = 211,713.12

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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.