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Finding the Fourth Proportional to 247,814.88, 371,736.46 and 70,307.92

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Solution

The fourth proportional to 247,814.88, 371,736.46 and 70,307.92 is: 105,465.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,814.88 : 371,736.46 = 70,307.92 : x
  2. Step 2: Convert to fraction form
    247,814.88/371,736.46 = 70,307.92/x
  3. Step 3: Cross multiply
    247,814.88x = 371,736.46 × 70,307.92
  4. Step 4: Simplify right side
    247,814.88x = 26,136,017,290.76
  5. Step 5: Solve for x
    x = 26,136,017,290.76/247,814.88
  6. Step 6: Final answer
    x = 105,465.89

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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.