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Finding the Fourth Proportional to 328,458.59, 492,468.99 and 118,069.19

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Solution

The fourth proportional to 328,458.59, 492,468.99 and 118,069.19 is: 177,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,458.59 : 492,468.99 = 118,069.19 : x
  2. Step 2: Convert to fraction form
    328,458.59/492,468.99 = 118,069.19/x
  3. Step 3: Cross multiply
    328,458.59x = 492,468.99 × 118,069.19
  4. Step 4: Simplify right side
    328,458.59x = 58,145,412,287.07
  5. Step 5: Solve for x
    x = 58,145,412,287.07/328,458.59
  6. Step 6: Final answer
    x = 177,025.10

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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.