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Finding the Fourth Proportional to 611,571.02, 917,366.10 and 185,111.51

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Solution

The fourth proportional to 611,571.02, 917,366.10 and 185,111.51 is: 277,670.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,571.02 : 917,366.10 = 185,111.51 : x
  2. Step 2: Convert to fraction form
    611,571.02/917,366.10 = 185,111.51/x
  3. Step 3: Cross multiply
    611,571.02x = 917,366.10 × 185,111.51
  4. Step 4: Simplify right side
    611,571.02x = 169,815,023,993.81
  5. Step 5: Solve for x
    x = 169,815,023,993.81/611,571.02
  6. Step 6: Final answer
    x = 277,670.16

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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.