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Finding the Fourth Proportional to 331,146.48, 496,803.56 and 94,490

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Solution

The fourth proportional to 331,146.48, 496,803.56 and 94,490 is: 141,758.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,146.48 : 496,803.56 = 94,490 : x
  2. Step 2: Convert to fraction form
    331,146.48/496,803.56 = 94,490/x
  3. Step 3: Cross multiply
    331,146.48x = 496,803.56 × 94,490
  4. Step 4: Simplify right side
    331,146.48x = 46,942,968,384.40
  5. Step 5: Solve for x
    x = 46,942,968,384.40/331,146.48
  6. Step 6: Final answer
    x = 141,758.92

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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.