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Finding the Fourth Proportional to 387,374.97, 581,095.94 and 106,892.22

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Solution

The fourth proportional to 387,374.97, 581,095.94 and 106,892.22 is: 160,347.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,374.97 : 581,095.94 = 106,892.22 : x
  2. Step 2: Convert to fraction form
    387,374.97/581,095.94 = 106,892.22/x
  3. Step 3: Cross multiply
    387,374.97x = 581,095.94 × 106,892.22
  4. Step 4: Simplify right side
    387,374.97x = 62,114,634,525.13
  5. Step 5: Solve for x
    x = 62,114,634,525.13/387,374.97
  6. Step 6: Final answer
    x = 160,347.57

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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.