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Finding the Fourth Proportional to 208,006.41, 312,056.61 and 65,860.32

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Solution

The fourth proportional to 208,006.41, 312,056.61 and 65,860.32 is: 98,805.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,006.41 : 312,056.61 = 65,860.32 : x
  2. Step 2: Convert to fraction form
    208,006.41/312,056.61 = 65,860.32/x
  3. Step 3: Cross multiply
    208,006.41x = 312,056.61 × 65,860.32
  4. Step 4: Simplify right side
    208,006.41x = 20,552,148,192.72
  5. Step 5: Solve for x
    x = 20,552,148,192.72/208,006.41
  6. Step 6: Final answer
    x = 98,805.36

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1.5x scale

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.