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Finding the Fourth Proportional to 328,062.84, 492,094.27 and 78,744.84

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Solution

The fourth proportional to 328,062.84, 492,094.27 and 78,744.84 is: 118,117.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,062.84 : 492,094.27 = 78,744.84 : x
  2. Step 2: Convert to fraction form
    328,062.84/492,094.27 = 78,744.84/x
  3. Step 3: Cross multiply
    328,062.84x = 492,094.27 × 78,744.84
  4. Step 4: Simplify right side
    328,062.84x = 38,749,884,162.34
  5. Step 5: Solve for x
    x = 38,749,884,162.34/328,062.84
  6. Step 6: Final answer
    x = 118,117.26

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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.