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Finding the Fourth Proportional to 245,538.40, 367,918.80 and 156,632.80

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Solution

The fourth proportional to 245,538.40, 367,918.80 and 156,632.80 is: 234,701.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,538.40 : 367,918.80 = 156,632.80 : x
  2. Step 2: Convert to fraction form
    245,538.40/367,918.80 = 156,632.80/x
  3. Step 3: Cross multiply
    245,538.40x = 367,918.80 × 156,632.80
  4. Step 4: Simplify right side
    245,538.40x = 57,628,151,816.64
  5. Step 5: Solve for x
    x = 57,628,151,816.64/245,538.40
  6. Step 6: Final answer
    x = 234,701.18

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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.