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Finding the Fourth Proportional to 454,603.73, 681,881.04 and 139,060.67

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Solution

The fourth proportional to 454,603.73, 681,881.04 and 139,060.67 is: 208,583.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,603.73 : 681,881.04 = 139,060.67 : x
  2. Step 2: Convert to fraction form
    454,603.73/681,881.04 = 139,060.67/x
  3. Step 3: Cross multiply
    454,603.73x = 681,881.04 × 139,060.67
  4. Step 4: Simplify right side
    454,603.73x = 94,822,830,873.29
  5. Step 5: Solve for x
    x = 94,822,830,873.29/454,603.73
  6. Step 6: Final answer
    x = 208,583.49

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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.