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Finding the Fourth Proportional to 308,339.08, 462,445.06 and 118,734.38

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Solution

The fourth proportional to 308,339.08, 462,445.06 and 118,734.38 is: 178,077.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,339.08 : 462,445.06 = 118,734.38 : x
  2. Step 2: Convert to fraction form
    308,339.08/462,445.06 = 118,734.38/x
  3. Step 3: Cross multiply
    308,339.08x = 462,445.06 × 118,734.38
  4. Step 4: Simplify right side
    308,339.08x = 54,908,127,483.16
  5. Step 5: Solve for x
    x = 54,908,127,483.16/308,339.08
  6. Step 6: Final answer
    x = 178,077.09

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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.