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Finding the Fourth Proportional to 301,835.60, 452,638.20 and 91,403.60

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Solution

The fourth proportional to 301,835.60, 452,638.20 and 91,403.60 is: 137,070.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,835.60 : 452,638.20 = 91,403.60 : x
  2. Step 2: Convert to fraction form
    301,835.60/452,638.20 = 91,403.60/x
  3. Step 3: Cross multiply
    301,835.60x = 452,638.20 × 91,403.60
  4. Step 4: Simplify right side
    301,835.60x = 41,372,760,977.52
  5. Step 5: Solve for x
    x = 41,372,760,977.52/301,835.60
  6. Step 6: Final answer
    x = 137,070.51

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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.