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Finding the Fourth Proportional to 371,056.68, 556,665.66 and 121,729.32

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Solution

The fourth proportional to 371,056.68, 556,665.66 and 121,729.32 is: 182,620.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,056.68 : 556,665.66 = 121,729.32 : x
  2. Step 2: Convert to fraction form
    371,056.68/556,665.66 = 121,729.32/x
  3. Step 3: Cross multiply
    371,056.68x = 556,665.66 × 121,729.32
  4. Step 4: Simplify right side
    371,056.68x = 67,762,532,259.15
  5. Step 5: Solve for x
    x = 67,762,532,259.15/371,056.68
  6. Step 6: Final answer
    x = 182,620.43

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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.