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Finding the Fourth Proportional to 129,858.10, 194,823.60 and 63,300.40

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Solution

The fourth proportional to 129,858.10, 194,823.60 and 63,300.40 is: 94,968.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,858.10 : 194,823.60 = 63,300.40 : x
  2. Step 2: Convert to fraction form
    129,858.10/194,823.60 = 63,300.40/x
  3. Step 3: Cross multiply
    129,858.10x = 194,823.60 × 63,300.40
  4. Step 4: Simplify right side
    129,858.10x = 12,332,411,809.44
  5. Step 5: Solve for x
    x = 12,332,411,809.44/129,858.10
  6. Step 6: Final answer
    x = 94,968.37

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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.