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Finding the Fourth Proportional to 201,953,126.40, 302,173,862.40 and 133,928,678.40

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Solution

The fourth proportional to 201,953,126.40, 302,173,862.40 and 133,928,678.40 is: 200,391,777.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,953,126.40 : 302,173,862.40 = 133,928,678.40 : x
  2. Step 2: Convert to fraction form
    201,953,126.40/302,173,862.40 = 133,928,678.40/x
  3. Step 3: Cross multiply
    201,953,126.40x = 302,173,862.40 × 133,928,678.40
  4. Step 4: Simplify right side
    201,953,126.40x = 40,469,746,038,255,448
  5. Step 5: Solve for x
    x = 40,469,746,038,255,448/201,953,126.40
  6. Step 6: Final answer
    x = 200,391,777.83

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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.