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Finding the Fourth Proportional to 207,962.01, 287,000.86 and 117,284.88

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Solution

The fourth proportional to 207,962.01, 287,000.86 and 117,284.88 is: 161,860.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,962.01 : 287,000.86 = 117,284.88 : x
  2. Step 2: Convert to fraction form
    207,962.01/287,000.86 = 117,284.88/x
  3. Step 3: Cross multiply
    207,962.01x = 287,000.86 × 117,284.88
  4. Step 4: Simplify right side
    207,962.01x = 33,660,860,838.57
  5. Step 5: Solve for x
    x = 33,660,860,838.57/207,962.01
  6. Step 6: Final answer
    x = 161,860.63

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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.