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Finding the Fourth Proportional to 88,974, 122,784.48 and 49,230

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Solution

The fourth proportional to 88,974, 122,784.48 and 49,230 is: 67,937.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,974 : 122,784.48 = 49,230 : x
  2. Step 2: Convert to fraction form
    88,974/122,784.48 = 49,230/x
  3. Step 3: Cross multiply
    88,974x = 122,784.48 × 49,230
  4. Step 4: Simplify right side
    88,974x = 6,044,679,950.40
  5. Step 5: Solve for x
    x = 6,044,679,950.40/88,974
  6. Step 6: Final answer
    x = 67,937.60

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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.