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Finding the Fourth Proportional to 454,614.99, 681,897.76 and 139,071.89

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Solution

The fourth proportional to 454,614.99, 681,897.76 and 139,071.89 is: 208,600.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,614.99 : 681,897.76 = 139,071.89 : x
  2. Step 2: Convert to fraction form
    454,614.99/681,897.76 = 139,071.89/x
  3. Step 3: Cross multiply
    454,614.99x = 681,897.76 × 139,071.89
  4. Step 4: Simplify right side
    454,614.99x = 94,832,810,269.97
  5. Step 5: Solve for x
    x = 94,832,810,269.97/454,614.99
  6. Step 6: Final answer
    x = 208,600.27

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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.