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Finding the Fourth Proportional to 73,005.40, 109,508.10 and 73,005.40

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Solution

The fourth proportional to 73,005.40, 109,508.10 and 73,005.40 is: 109,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,005.40 : 109,508.10 = 73,005.40 : x
  2. Step 2: Convert to fraction form
    73,005.40/109,508.10 = 73,005.40/x
  3. Step 3: Cross multiply
    73,005.40x = 109,508.10 × 73,005.40
  4. Step 4: Simplify right side
    73,005.40x = 7,994,682,643.74
  5. Step 5: Solve for x
    x = 7,994,682,643.74/73,005.40
  6. Step 6: Final answer
    x = 109,508.10

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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.