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Finding the Fourth Proportional to 364,047.40, 545,925.30 and 127,268.20

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Solution

The fourth proportional to 364,047.40, 545,925.30 and 127,268.20 is: 190,851.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,047.40 : 545,925.30 = 127,268.20 : x
  2. Step 2: Convert to fraction form
    364,047.40/545,925.30 = 127,268.20/x
  3. Step 3: Cross multiply
    364,047.40x = 545,925.30 × 127,268.20
  4. Step 4: Simplify right side
    364,047.40x = 69,478,930,265.46
  5. Step 5: Solve for x
    x = 69,478,930,265.46/364,047.40
  6. Step 6: Final answer
    x = 190,851.33

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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.