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Finding the Fourth Proportional to 55,319,404.60, 82,979,106.90 and 55,319,404.60

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Solution

The fourth proportional to 55,319,404.60, 82,979,106.90 and 55,319,404.60 is: 82,979,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,319,404.60 : 82,979,106.90 = 55,319,404.60 : x
  2. Step 2: Convert to fraction form
    55,319,404.60/82,979,106.90 = 55,319,404.60/x
  3. Step 3: Cross multiply
    55,319,404.60x = 82,979,106.90 × 55,319,404.60
  4. Step 4: Simplify right side
    55,319,404.60x = 4,590,354,787,947,752
  5. Step 5: Solve for x
    x = 4,590,354,787,947,752/55,319,404.60
  6. Step 6: Final answer
    x = 82,979,106.90

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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.