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Finding the Fourth Proportional to 317,641.95, 476,648.82 and 118,100.07

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Solution

The fourth proportional to 317,641.95, 476,648.82 and 118,100.07 is: 177,219.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,641.95 : 476,648.82 = 118,100.07 : x
  2. Step 2: Convert to fraction form
    317,641.95/476,648.82 = 118,100.07/x
  3. Step 3: Cross multiply
    317,641.95x = 476,648.82 × 118,100.07
  4. Step 4: Simplify right side
    317,641.95x = 56,292,259,007.42
  5. Step 5: Solve for x
    x = 56,292,259,007.42/317,641.95
  6. Step 6: Final answer
    x = 177,219.22

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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.