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Finding the Fourth Proportional to 357,669.90, 536,587.94 and 104,940.18

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Solution

The fourth proportional to 357,669.90, 536,587.94 and 104,940.18 is: 157,434.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,669.90 : 536,587.94 = 104,940.18 : x
  2. Step 2: Convert to fraction form
    357,669.90/536,587.94 = 104,940.18/x
  3. Step 3: Cross multiply
    357,669.90x = 536,587.94 × 104,940.18
  4. Step 4: Simplify right side
    357,669.90x = 56,309,635,009.43
  5. Step 5: Solve for x
    x = 56,309,635,009.43/357,669.90
  6. Step 6: Final answer
    x = 157,434.65

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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.