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Finding the Fourth Proportional to 328,224.48, 492,419.75 and 91,566.98

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Solution

The fourth proportional to 328,224.48, 492,419.75 and 91,566.98 is: 137,373.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,224.48 : 492,419.75 = 91,566.98 : x
  2. Step 2: Convert to fraction form
    328,224.48/492,419.75 = 91,566.98/x
  3. Step 3: Cross multiply
    328,224.48x = 492,419.75 × 91,566.98
  4. Step 4: Simplify right side
    328,224.48x = 45,089,390,173.07
  5. Step 5: Solve for x
    x = 45,089,390,173.07/328,224.48
  6. Step 6: Final answer
    x = 137,373.64

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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.