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Finding the Fourth Proportional to 71,415,368.85, 100,208,264.55 and 71,415,368.85

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Solution

The fourth proportional to 71,415,368.85, 100,208,264.55 and 71,415,368.85 is: 100,208,264.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,415,368.85 : 100,208,264.55 = 71,415,368.85 : x
  2. Step 2: Convert to fraction form
    71,415,368.85/100,208,264.55 = 71,415,368.85/x
  3. Step 3: Cross multiply
    71,415,368.85x = 100,208,264.55 × 71,415,368.85
  4. Step 4: Simplify right side
    71,415,368.85x = 7,156,410,174,656,628
  5. Step 5: Solve for x
    x = 7,156,410,174,656,628/71,415,368.85
  6. Step 6: Final answer
    x = 100,208,264.55

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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.