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Finding the Fourth Proportional to 207,809.52, 286,777.20 and 112,316.22

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Solution

The fourth proportional to 207,809.52, 286,777.20 and 112,316.22 is: 154,996.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,809.52 : 286,777.20 = 112,316.22 : x
  2. Step 2: Convert to fraction form
    207,809.52/286,777.20 = 112,316.22/x
  3. Step 3: Cross multiply
    207,809.52x = 286,777.20 × 112,316.22
  4. Step 4: Simplify right side
    207,809.52x = 32,209,731,086.18
  5. Step 5: Solve for x
    x = 32,209,731,086.18/207,809.52
  6. Step 6: Final answer
    x = 154,996.42

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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.