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Finding the Fourth Proportional to 207,995.67, 287,017.70 and 117,373.68

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Solution

The fourth proportional to 207,995.67, 287,017.70 and 117,373.68 is: 161,966.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,995.67 : 287,017.70 = 117,373.68 : x
  2. Step 2: Convert to fraction form
    207,995.67/287,017.70 = 117,373.68/x
  3. Step 3: Cross multiply
    207,995.67x = 287,017.70 × 117,373.68
  4. Step 4: Simplify right side
    207,995.67x = 33,688,323,087.27
  5. Step 5: Solve for x
    x = 33,688,323,087.27/207,995.67
  6. Step 6: Final answer
    x = 161,966.46

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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.