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Finding the Fourth Proportional to 174,063.77, 261,053.28 and 72,807.09

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Solution

The fourth proportional to 174,063.77, 261,053.28 and 72,807.09 is: 109,192.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,063.77 : 261,053.28 = 72,807.09 : x
  2. Step 2: Convert to fraction form
    174,063.77/261,053.28 = 72,807.09/x
  3. Step 3: Cross multiply
    174,063.77x = 261,053.28 × 72,807.09
  4. Step 4: Simplify right side
    174,063.77x = 19,006,528,672.81
  5. Step 5: Solve for x
    x = 19,006,528,672.81/174,063.77
  6. Step 6: Final answer
    x = 109,192.91

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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.