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Finding the Fourth Proportional to 355,704.90, 533,518.03 and 89,465.51

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Solution

The fourth proportional to 355,704.90, 533,518.03 and 89,465.51 is: 134,188.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,704.90 : 533,518.03 = 89,465.51 : x
  2. Step 2: Convert to fraction form
    355,704.90/533,518.03 = 89,465.51/x
  3. Step 3: Cross multiply
    355,704.90x = 533,518.03 × 89,465.51
  4. Step 4: Simplify right side
    355,704.90x = 47,731,464,093.77
  5. Step 5: Solve for x
    x = 47,731,464,093.77/355,704.90
  6. Step 6: Final answer
    x = 134,188.38

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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.