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Finding the Fourth Proportional to 328,037.20, 492,055.80 and 117,647.80

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Solution

The fourth proportional to 328,037.20, 492,055.80 and 117,647.80 is: 176,471.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,037.20 : 492,055.80 = 117,647.80 : x
  2. Step 2: Convert to fraction form
    328,037.20/492,055.80 = 117,647.80/x
  3. Step 3: Cross multiply
    328,037.20x = 492,055.80 × 117,647.80
  4. Step 4: Simplify right side
    328,037.20x = 57,889,282,347.24
  5. Step 5: Solve for x
    x = 57,889,282,347.24/328,037.20
  6. Step 6: Final answer
    x = 176,471.70

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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.