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Finding the Fourth Proportional to 328,773.13, 492,762.69 and 160,040.61

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Solution

The fourth proportional to 328,773.13, 492,762.69 and 160,040.61 is: 239,867.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,773.13 : 492,762.69 = 160,040.61 : x
  2. Step 2: Convert to fraction form
    328,773.13/492,762.69 = 160,040.61/x
  3. Step 3: Cross multiply
    328,773.13x = 492,762.69 × 160,040.61
  4. Step 4: Simplify right side
    328,773.13x = 78,862,041,492.84
  5. Step 5: Solve for x
    x = 78,862,041,492.84/328,773.13
  6. Step 6: Final answer
    x = 239,867.66

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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.