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Finding the Fourth Proportional to 176,205.72, 243,053.30 and 104,535

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Solution

The fourth proportional to 176,205.72, 243,053.30 and 104,535 is: 144,192.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,205.72 : 243,053.30 = 104,535 : x
  2. Step 2: Convert to fraction form
    176,205.72/243,053.30 = 104,535/x
  3. Step 3: Cross multiply
    176,205.72x = 243,053.30 × 104,535
  4. Step 4: Simplify right side
    176,205.72x = 25,407,576,192.83
  5. Step 5: Solve for x
    x = 25,407,576,192.83/176,205.72
  6. Step 6: Final answer
    x = 144,192.69

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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.