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Finding the Fourth Proportional to 373,281.68, 515,106.51 and 212,114.36

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Solution

The fourth proportional to 373,281.68, 515,106.51 and 212,114.36 is: 292,705.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,281.68 : 515,106.51 = 212,114.36 : x
  2. Step 2: Convert to fraction form
    373,281.68/515,106.51 = 212,114.36/x
  3. Step 3: Cross multiply
    373,281.68x = 515,106.51 × 212,114.36
  4. Step 4: Simplify right side
    373,281.68x = 109,261,485,124.95
  5. Step 5: Solve for x
    x = 109,261,485,124.95/373,281.68
  6. Step 6: Final answer
    x = 292,705.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.