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Finding the Fourth Proportional to 133,018.68, 199,415.66 and 61,904.63

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Solution

The fourth proportional to 133,018.68, 199,415.66 and 61,904.63 is: 92,804.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,018.68 : 199,415.66 = 61,904.63 : x
  2. Step 2: Convert to fraction form
    133,018.68/199,415.66 = 61,904.63/x
  3. Step 3: Cross multiply
    133,018.68x = 199,415.66 × 61,904.63
  4. Step 4: Simplify right side
    133,018.68x = 12,344,751,341.90
  5. Step 5: Solve for x
    x = 12,344,751,341.90/133,018.68
  6. Step 6: Final answer
    x = 92,804.64

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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.