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Finding the Fourth Proportional to 286,525,648.44, 429,738,608.88 and 92,437,063.92

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Solution

The fourth proportional to 286,525,648.44, 429,738,608.88 and 92,437,063.92 is: 138,639,509.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,525,648.44 : 429,738,608.88 = 92,437,063.92 : x
  2. Step 2: Convert to fraction form
    286,525,648.44/429,738,608.88 = 92,437,063.92/x
  3. Step 3: Cross multiply
    286,525,648.44x = 429,738,608.88 × 92,437,063.92
  4. Step 4: Simplify right side
    286,525,648.44x = 39,723,775,257,932,440
  5. Step 5: Solve for x
    x = 39,723,775,257,932,440/286,525,648.44
  6. Step 6: Final answer
    x = 138,639,509.15

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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.