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Finding the Fourth Proportional to 70,675,404.40, 106,013,106.60 and 63,872,959.60

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Solution

The fourth proportional to 70,675,404.40, 106,013,106.60 and 63,872,959.60 is: 95,809,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,675,404.40 : 106,013,106.60 = 63,872,959.60 : x
  2. Step 2: Convert to fraction form
    70,675,404.40/106,013,106.60 = 63,872,959.60/x
  3. Step 3: Cross multiply
    70,675,404.40x = 106,013,106.60 × 63,872,959.60
  4. Step 4: Simplify right side
    70,675,404.40x = 6,771,370,874,932,293
  5. Step 5: Solve for x
    x = 6,771,370,874,932,293/70,675,404.40
  6. Step 6: Final answer
    x = 95,809,439.40

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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.