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Finding the Fourth Proportional to 403,059.65, 604,594.66 and 118,685.54

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Solution

The fourth proportional to 403,059.65, 604,594.66 and 118,685.54 is: 178,029.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,059.65 : 604,594.66 = 118,685.54 : x
  2. Step 2: Convert to fraction form
    403,059.65/604,594.66 = 118,685.54/x
  3. Step 3: Cross multiply
    403,059.65x = 604,594.66 × 118,685.54
  4. Step 4: Simplify right side
    403,059.65x = 71,756,643,703.22
  5. Step 5: Solve for x
    x = 71,756,643,703.22/403,059.65
  6. Step 6: Final answer
    x = 178,029.84

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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.