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Finding the Fourth Proportional to 208,068.84, 312,161.58 and 83,497.32

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Solution

The fourth proportional to 208,068.84, 312,161.58 and 83,497.32 is: 125,269.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,068.84 : 312,161.58 = 83,497.32 : x
  2. Step 2: Convert to fraction form
    208,068.84/312,161.58 = 83,497.32/x
  3. Step 3: Cross multiply
    208,068.84x = 312,161.58 × 83,497.32
  4. Step 4: Simplify right side
    208,068.84x = 26,064,655,336.97
  5. Step 5: Solve for x
    x = 26,064,655,336.97/208,068.84
  6. Step 6: Final answer
    x = 125,269.38

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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.