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Finding the Fourth Proportional to 126,528.93, 174,603.10 and 69,936.93

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Solution

The fourth proportional to 126,528.93, 174,603.10 and 69,936.93 is: 96,509.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,528.93 : 174,603.10 = 69,936.93 : x
  2. Step 2: Convert to fraction form
    126,528.93/174,603.10 = 69,936.93/x
  3. Step 3: Cross multiply
    126,528.93x = 174,603.10 × 69,936.93
  4. Step 4: Simplify right side
    126,528.93x = 12,211,204,782.48
  5. Step 5: Solve for x
    x = 12,211,204,782.48/126,528.93
  6. Step 6: Final answer
    x = 96,509.19

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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.