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Finding the Fourth Proportional to 201,788,981.40, 302,205,175.20 and 201,788,981.40

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Solution

The fourth proportional to 201,788,981.40, 302,205,175.20 and 201,788,981.40 is: 302,205,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,788,981.40 : 302,205,175.20 = 201,788,981.40 : x
  2. Step 2: Convert to fraction form
    201,788,981.40/302,205,175.20 = 201,788,981.40/x
  3. Step 3: Cross multiply
    201,788,981.40x = 302,205,175.20 × 201,788,981.40
  4. Step 4: Simplify right side
    201,788,981.40x = 60,981,674,477,416,544
  5. Step 5: Solve for x
    x = 60,981,674,477,416,544/201,788,981.40
  6. Step 6: Final answer
    x = 302,205,175.20

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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.