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Finding the Fourth Proportional to 364,073.55, 545,946.30 and 139,359.30

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Solution

The fourth proportional to 364,073.55, 545,946.30 and 139,359.30 is: 208,976.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,073.55 : 545,946.30 = 139,359.30 : x
  2. Step 2: Convert to fraction form
    364,073.55/545,946.30 = 139,359.30/x
  3. Step 3: Cross multiply
    364,073.55x = 545,946.30 × 139,359.30
  4. Step 4: Simplify right side
    364,073.55x = 76,082,694,205.59
  5. Step 5: Solve for x
    x = 76,082,694,205.59/364,073.55
  6. Step 6: Final answer
    x = 208,976.16

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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.