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Finding the Fourth Proportional to 246,477.65, 369,663.09 and 78,011.67

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Solution

The fourth proportional to 246,477.65, 369,663.09 and 78,011.67 is: 117,000.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,477.65 : 369,663.09 = 78,011.67 : x
  2. Step 2: Convert to fraction form
    246,477.65/369,663.09 = 78,011.67/x
  3. Step 3: Cross multiply
    246,477.65x = 369,663.09 × 78,011.67
  4. Step 4: Simplify right side
    246,477.65x = 28,838,034,988.26
  5. Step 5: Solve for x
    x = 28,838,034,988.26/246,477.65
  6. Step 6: Final answer
    x = 117,000.61

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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.