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Finding the Fourth Proportional to 374,615.10, 561,922.65 and 248,643.90

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Solution

The fourth proportional to 374,615.10, 561,922.65 and 248,643.90 is: 372,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,615.10 : 561,922.65 = 248,643.90 : x
  2. Step 2: Convert to fraction form
    374,615.10/561,922.65 = 248,643.90/x
  3. Step 3: Cross multiply
    374,615.10x = 561,922.65 × 248,643.90
  4. Step 4: Simplify right side
    374,615.10x = 139,718,639,194.34
  5. Step 5: Solve for x
    x = 139,718,639,194.34/374,615.10
  6. Step 6: Final answer
    x = 372,965.85

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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.