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Finding the Fourth Proportional to 364,957.53, 547,465.05 and 128,353.29

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Solution

The fourth proportional to 364,957.53, 547,465.05 and 128,353.29 is: 192,540.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,957.53 : 547,465.05 = 128,353.29 : x
  2. Step 2: Convert to fraction form
    364,957.53/547,465.05 = 128,353.29/x
  3. Step 3: Cross multiply
    364,957.53x = 547,465.05 × 128,353.29
  4. Step 4: Simplify right side
    364,957.53x = 70,268,940,327.51
  5. Step 5: Solve for x
    x = 70,268,940,327.51/364,957.53
  6. Step 6: Final answer
    x = 192,540.05

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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.