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Finding the Fourth Proportional to 328,813.68, 492,924.32 and 118,303.50

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Solution

The fourth proportional to 328,813.68, 492,924.32 and 118,303.50 is: 177,348.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,813.68 : 492,924.32 = 118,303.50 : x
  2. Step 2: Convert to fraction form
    328,813.68/492,924.32 = 118,303.50/x
  3. Step 3: Cross multiply
    328,813.68x = 492,924.32 × 118,303.50
  4. Step 4: Simplify right side
    328,813.68x = 58,314,672,291.12
  5. Step 5: Solve for x
    x = 58,314,672,291.12/328,813.68
  6. Step 6: Final answer
    x = 177,348.68

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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.