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Finding the Fourth Proportional to 526,356.22, 789,526.98 and 126,993.64

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Solution

The fourth proportional to 526,356.22, 789,526.98 and 126,993.64 is: 190,488.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,356.22 : 789,526.98 = 126,993.64 : x
  2. Step 2: Convert to fraction form
    526,356.22/789,526.98 = 126,993.64/x
  3. Step 3: Cross multiply
    526,356.22x = 789,526.98 × 126,993.64
  4. Step 4: Simplify right side
    526,356.22x = 100,264,905,068.41
  5. Step 5: Solve for x
    x = 100,264,905,068.41/526,356.22
  6. Step 6: Final answer
    x = 190,488.69

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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.