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Finding the Fourth Proportional to 317,763.63, 476,602.98 and 118,056.78

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Solution

The fourth proportional to 317,763.63, 476,602.98 and 118,056.78 is: 177,069.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,763.63 : 476,602.98 = 118,056.78 : x
  2. Step 2: Convert to fraction form
    317,763.63/476,602.98 = 118,056.78/x
  3. Step 3: Cross multiply
    317,763.63x = 476,602.98 × 118,056.78
  4. Step 4: Simplify right side
    317,763.63x = 56,266,213,157.20
  5. Step 5: Solve for x
    x = 56,266,213,157.20/317,763.63
  6. Step 6: Final answer
    x = 177,069.39

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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.