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Finding the Fourth Proportional to 200,045.10, 280,529.70 and 200,045.10

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Solution

The fourth proportional to 200,045.10, 280,529.70 and 200,045.10 is: 280,529.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,045.10 : 280,529.70 = 200,045.10 : x
  2. Step 2: Convert to fraction form
    200,045.10/280,529.70 = 200,045.10/x
  3. Step 3: Cross multiply
    200,045.10x = 280,529.70 × 200,045.10
  4. Step 4: Simplify right side
    200,045.10x = 56,118,591,889.47
  5. Step 5: Solve for x
    x = 56,118,591,889.47/200,045.10
  6. Step 6: Final answer
    x = 280,529.70

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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.