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Finding the Fourth Proportional to 328,813.18, 492,923.57 and 118,303

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Solution

The fourth proportional to 328,813.18, 492,923.57 and 118,303 is: 177,347.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,813.18 : 492,923.57 = 118,303 : x
  2. Step 2: Convert to fraction form
    328,813.18/492,923.57 = 118,303/x
  3. Step 3: Cross multiply
    328,813.18x = 492,923.57 × 118,303
  4. Step 4: Simplify right side
    328,813.18x = 58,314,337,101.71
  5. Step 5: Solve for x
    x = 58,314,337,101.71/328,813.18
  6. Step 6: Final answer
    x = 177,347.93

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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.