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Finding the Fourth Proportional to 328,895.02, 493,342.54 and 79,577.02

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Solution

The fourth proportional to 328,895.02, 493,342.54 and 79,577.02 is: 119,365.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,895.02 : 493,342.54 = 79,577.02 : x
  2. Step 2: Convert to fraction form
    328,895.02/493,342.54 = 79,577.02/x
  3. Step 3: Cross multiply
    328,895.02x = 493,342.54 × 79,577.02
  4. Step 4: Simplify right side
    328,895.02x = 39,258,727,262.74
  5. Step 5: Solve for x
    x = 39,258,727,262.74/328,895.02
  6. Step 6: Final answer
    x = 119,365.53

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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.