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Finding the Fourth Proportional to 134,039.40, 201,059.10 and 112,388.10

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Solution

The fourth proportional to 134,039.40, 201,059.10 and 112,388.10 is: 168,582.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,039.40 : 201,059.10 = 112,388.10 : x
  2. Step 2: Convert to fraction form
    134,039.40/201,059.10 = 112,388.10/x
  3. Step 3: Cross multiply
    134,039.40x = 201,059.10 × 112,388.10
  4. Step 4: Simplify right side
    134,039.40x = 22,596,650,236.71
  5. Step 5: Solve for x
    x = 22,596,650,236.71/134,039.40
  6. Step 6: Final answer
    x = 168,582.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.