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Finding the Fourth Proportional to 207,612.32, 286,504.98 and 112,119.02

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Solution

The fourth proportional to 207,612.32, 286,504.98 and 112,119.02 is: 154,724.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,612.32 : 286,504.98 = 112,119.02 : x
  2. Step 2: Convert to fraction form
    207,612.32/286,504.98 = 112,119.02/x
  3. Step 3: Cross multiply
    207,612.32x = 286,504.98 × 112,119.02
  4. Step 4: Simplify right side
    207,612.32x = 32,122,657,582.72
  5. Step 5: Solve for x
    x = 32,122,657,582.72/207,612.32
  6. Step 6: Final answer
    x = 154,724.24

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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.