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Finding the Fourth Proportional to 134,428.30, 201,751.80 and 130,054.30

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Solution

The fourth proportional to 134,428.30, 201,751.80 and 130,054.30 is: 195,187.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,428.30 : 201,751.80 = 130,054.30 : x
  2. Step 2: Convert to fraction form
    134,428.30/201,751.80 = 130,054.30/x
  3. Step 3: Cross multiply
    134,428.30x = 201,751.80 × 130,054.30
  4. Step 4: Simplify right side
    134,428.30x = 26,238,689,122.74
  5. Step 5: Solve for x
    x = 26,238,689,122.74/134,428.30
  6. Step 6: Final answer
    x = 195,187.24

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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.