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Finding the Fourth Proportional to 360,421.40, 540,639.30 and 94,165.40

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Solution

The fourth proportional to 360,421.40, 540,639.30 and 94,165.40 is: 141,249.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,421.40 : 540,639.30 = 94,165.40 : x
  2. Step 2: Convert to fraction form
    360,421.40/540,639.30 = 94,165.40/x
  3. Step 3: Cross multiply
    360,421.40x = 540,639.30 × 94,165.40
  4. Step 4: Simplify right side
    360,421.40x = 50,909,515,940.22
  5. Step 5: Solve for x
    x = 50,909,515,940.22/360,421.40
  6. Step 6: Final answer
    x = 141,249.98

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1.5x scale

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.