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Finding the Fourth Proportional to 364,050.40, 545,978.40 and 127,368.40

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Solution

The fourth proportional to 364,050.40, 545,978.40 and 127,368.40 is: 191,018.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,050.40 : 545,978.40 = 127,368.40 : x
  2. Step 2: Convert to fraction form
    364,050.40/545,978.40 = 127,368.40/x
  3. Step 3: Cross multiply
    364,050.40x = 545,978.40 × 127,368.40
  4. Step 4: Simplify right side
    364,050.40x = 69,540,395,242.56
  5. Step 5: Solve for x
    x = 69,540,395,242.56/364,050.40
  6. Step 6: Final answer
    x = 191,018.59

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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.