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Finding the Fourth Proportional to 82,957.40, 124,436.10 and 30,404.60

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Solution

The fourth proportional to 82,957.40, 124,436.10 and 30,404.60 is: 45,606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,957.40 : 124,436.10 = 30,404.60 : x
  2. Step 2: Convert to fraction form
    82,957.40/124,436.10 = 30,404.60/x
  3. Step 3: Cross multiply
    82,957.40x = 124,436.10 × 30,404.60
  4. Step 4: Simplify right side
    82,957.40x = 3,783,429,846.06
  5. Step 5: Solve for x
    x = 3,783,429,846.06/82,957.40
  6. Step 6: Final answer
    x = 45,606.90

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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.