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Finding the Fourth Proportional to 134,415.80, 201,628.48 and 45,657.76

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Solution

The fourth proportional to 134,415.80, 201,628.48 and 45,657.76 is: 68,488.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,415.80 : 201,628.48 = 45,657.76 : x
  2. Step 2: Convert to fraction form
    134,415.80/201,628.48 = 45,657.76/x
  3. Step 3: Cross multiply
    134,415.80x = 201,628.48 × 45,657.76
  4. Step 4: Simplify right side
    134,415.80x = 9,205,904,749.00
  5. Step 5: Solve for x
    x = 9,205,904,749.00/134,415.80
  6. Step 6: Final answer
    x = 68,488.26

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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.