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Finding the Fourth Proportional to 370,999.95, 556,315.64 and 118,247.55

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Solution

The fourth proportional to 370,999.95, 556,315.64 and 118,247.55 is: 177,312.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,999.95 : 556,315.64 = 118,247.55 : x
  2. Step 2: Convert to fraction form
    370,999.95/556,315.64 = 118,247.55/x
  3. Step 3: Cross multiply
    370,999.95x = 556,315.64 × 118,247.55
  4. Step 4: Simplify right side
    370,999.95x = 65,782,960,865.44
  5. Step 5: Solve for x
    x = 65,782,960,865.44/370,999.95
  6. Step 6: Final answer
    x = 177,312.59

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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.