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Finding the Fourth Proportional to 369,555.77, 554,369.09 and 169,931.67

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Solution

The fourth proportional to 369,555.77, 554,369.09 and 169,931.67 is: 254,913.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,555.77 : 554,369.09 = 169,931.67 : x
  2. Step 2: Convert to fraction form
    369,555.77/554,369.09 = 169,931.67/x
  3. Step 3: Cross multiply
    369,555.77x = 554,369.09 × 169,931.67
  4. Step 4: Simplify right side
    369,555.77x = 94,204,864,410.42
  5. Step 5: Solve for x
    x = 94,204,864,410.42/369,555.77
  6. Step 6: Final answer
    x = 254,913.80

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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.