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Finding the Fourth Proportional to 328,493.60, 492,740.40 and 106,877.60

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Solution

The fourth proportional to 328,493.60, 492,740.40 and 106,877.60 is: 160,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,493.60 : 492,740.40 = 106,877.60 : x
  2. Step 2: Convert to fraction form
    328,493.60/492,740.40 = 106,877.60/x
  3. Step 3: Cross multiply
    328,493.60x = 492,740.40 × 106,877.60
  4. Step 4: Simplify right side
    328,493.60x = 52,662,911,375.04
  5. Step 5: Solve for x
    x = 52,662,911,375.04/328,493.60
  6. Step 6: Final answer
    x = 160,316.40

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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.