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Finding the Fourth Proportional to 208,316.54, 287,476.74 and 112,823.24

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Solution

The fourth proportional to 208,316.54, 287,476.74 and 112,823.24 is: 155,696.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,316.54 : 287,476.74 = 112,823.24 : x
  2. Step 2: Convert to fraction form
    208,316.54/287,476.74 = 112,823.24/x
  3. Step 3: Cross multiply
    208,316.54x = 287,476.74 × 112,823.24
  4. Step 4: Simplify right side
    208,316.54x = 32,434,057,231.44
  5. Step 5: Solve for x
    x = 32,434,057,231.44/208,316.54
  6. Step 6: Final answer
    x = 155,696.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.