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Finding the Fourth Proportional to 563,834.71, 845,754.90 and 143,110.72

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Solution

The fourth proportional to 563,834.71, 845,754.90 and 143,110.72 is: 214,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,834.71 : 845,754.90 = 143,110.72 : x
  2. Step 2: Convert to fraction form
    563,834.71/845,754.90 = 143,110.72/x
  3. Step 3: Cross multiply
    563,834.71x = 845,754.90 × 143,110.72
  4. Step 4: Simplify right side
    563,834.71x = 121,036,592,682.53
  5. Step 5: Solve for x
    x = 121,036,592,682.53/563,834.71
  6. Step 6: Final answer
    x = 214,666.80

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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.