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Finding the Fourth Proportional to 100,579.10, 141,204.40 and 100,579.10

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Solution

The fourth proportional to 100,579.10, 141,204.40 and 100,579.10 is: 141,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,579.10 : 141,204.40 = 100,579.10 : x
  2. Step 2: Convert to fraction form
    100,579.10/141,204.40 = 100,579.10/x
  3. Step 3: Cross multiply
    100,579.10x = 141,204.40 × 100,579.10
  4. Step 4: Simplify right side
    100,579.10x = 14,202,211,468.04
  5. Step 5: Solve for x
    x = 14,202,211,468.04/100,579.10
  6. Step 6: Final answer
    x = 141,204.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.