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Finding the Fourth Proportional to 223,404.10, 312,065.90 and 223,404.10

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Solution

The fourth proportional to 223,404.10, 312,065.90 and 223,404.10 is: 312,065.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,404.10 : 312,065.90 = 223,404.10 : x
  2. Step 2: Convert to fraction form
    223,404.10/312,065.90 = 223,404.10/x
  3. Step 3: Cross multiply
    223,404.10x = 312,065.90 × 223,404.10
  4. Step 4: Simplify right side
    223,404.10x = 69,716,801,530.19
  5. Step 5: Solve for x
    x = 69,716,801,530.19/223,404.10
  6. Step 6: Final answer
    x = 312,065.90

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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.