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Finding the Fourth Proportional to 225,907.40, 338,861.10 and 124,430.60

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Solution

The fourth proportional to 225,907.40, 338,861.10 and 124,430.60 is: 186,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,907.40 : 338,861.10 = 124,430.60 : x
  2. Step 2: Convert to fraction form
    225,907.40/338,861.10 = 124,430.60/x
  3. Step 3: Cross multiply
    225,907.40x = 338,861.10 × 124,430.60
  4. Step 4: Simplify right side
    225,907.40x = 42,164,689,989.66
  5. Step 5: Solve for x
    x = 42,164,689,989.66/225,907.40
  6. Step 6: Final answer
    x = 186,645.90

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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.