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Finding the Fourth Proportional to 168,145.35, 235,578.45 and 168,145.35

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Solution

The fourth proportional to 168,145.35, 235,578.45 and 168,145.35 is: 235,578.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,145.35 : 235,578.45 = 168,145.35 : x
  2. Step 2: Convert to fraction form
    168,145.35/235,578.45 = 168,145.35/x
  3. Step 3: Cross multiply
    168,145.35x = 235,578.45 × 168,145.35
  4. Step 4: Simplify right side
    168,145.35x = 39,611,420,927.71
  5. Step 5: Solve for x
    x = 39,611,420,927.71/168,145.35
  6. Step 6: Final answer
    x = 235,578.45

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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.