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Finding the Fourth Proportional to 90,073, 124,300.74 and 50,329

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Solution

The fourth proportional to 90,073, 124,300.74 and 50,329 is: 69,454.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,073 : 124,300.74 = 50,329 : x
  2. Step 2: Convert to fraction form
    90,073/124,300.74 = 50,329/x
  3. Step 3: Cross multiply
    90,073x = 124,300.74 × 50,329
  4. Step 4: Simplify right side
    90,073x = 6,255,931,943.46
  5. Step 5: Solve for x
    x = 6,255,931,943.46/90,073
  6. Step 6: Final answer
    x = 69,454.02

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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.