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Finding the Fourth Proportional to 246,528, 369,821.16 and 80,316

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Solution

The fourth proportional to 246,528, 369,821.16 and 80,316 is: 120,483.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,528 : 369,821.16 = 80,316 : x
  2. Step 2: Convert to fraction form
    246,528/369,821.16 = 80,316/x
  3. Step 3: Cross multiply
    246,528x = 369,821.16 × 80,316
  4. Step 4: Simplify right side
    246,528x = 29,702,556,286.56
  5. Step 5: Solve for x
    x = 29,702,556,286.56/246,528
  6. Step 6: Final answer
    x = 120,483.50

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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.