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Finding the Fourth Proportional to 374,291.19, 561,597.67 and 121,649.15

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Solution

The fourth proportional to 374,291.19, 561,597.67 and 121,649.15 is: 182,526.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,291.19 : 561,597.67 = 121,649.15 : x
  2. Step 2: Convert to fraction form
    374,291.19/561,597.67 = 121,649.15/x
  3. Step 3: Cross multiply
    374,291.19x = 561,597.67 × 121,649.15
  4. Step 4: Simplify right side
    374,291.19x = 68,317,879,197.48
  5. Step 5: Solve for x
    x = 68,317,879,197.48/374,291.19
  6. Step 6: Final answer
    x = 182,526.01

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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.