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Finding the Fourth Proportional to 90,046, 124,263.48 and 50,302

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Solution

The fourth proportional to 90,046, 124,263.48 and 50,302 is: 69,416.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,046 : 124,263.48 = 50,302 : x
  2. Step 2: Convert to fraction form
    90,046/124,263.48 = 50,302/x
  3. Step 3: Cross multiply
    90,046x = 124,263.48 × 50,302
  4. Step 4: Simplify right side
    90,046x = 6,250,701,570.96
  5. Step 5: Solve for x
    x = 6,250,701,570.96/90,046
  6. Step 6: Final answer
    x = 69,416.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.