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Finding the Fourth Proportional to 611,572.02, 917,367.60 and 185,112.51

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Solution

The fourth proportional to 611,572.02, 917,367.60 and 185,112.51 is: 277,671.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,572.02 : 917,367.60 = 185,112.51 : x
  2. Step 2: Convert to fraction form
    611,572.02/917,367.60 = 185,112.51/x
  3. Step 3: Cross multiply
    611,572.02x = 917,367.60 × 185,112.51
  4. Step 4: Simplify right side
    611,572.02x = 169,816,219,028.68
  5. Step 5: Solve for x
    x = 169,816,219,028.68/611,572.02
  6. Step 6: Final answer
    x = 277,671.66

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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.