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Finding the Fourth Proportional to 611,591.51, 917,315.96 and 162,347.29

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Solution

The fourth proportional to 611,591.51, 917,315.96 and 162,347.29 is: 243,502.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,591.51 : 917,315.96 = 162,347.29 : x
  2. Step 2: Convert to fraction form
    611,591.51/917,315.96 = 162,347.29/x
  3. Step 3: Cross multiply
    611,591.51x = 917,315.96 × 162,347.29
  4. Step 4: Simplify right side
    611,591.51x = 148,923,757,074.72
  5. Step 5: Solve for x
    x = 148,923,757,074.72/611,591.51
  6. Step 6: Final answer
    x = 243,502.00

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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.