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Finding the Fourth Proportional to 518,009.50, 777,058.26 and 144,032.50

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Solution

The fourth proportional to 518,009.50, 777,058.26 and 144,032.50 is: 216,060.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,009.50 : 777,058.26 = 144,032.50 : x
  2. Step 2: Convert to fraction form
    518,009.50/777,058.26 = 144,032.50/x
  3. Step 3: Cross multiply
    518,009.50x = 777,058.26 × 144,032.50
  4. Step 4: Simplify right side
    518,009.50x = 111,921,643,833.45
  5. Step 5: Solve for x
    x = 111,921,643,833.45/518,009.50
  6. Step 6: Final answer
    x = 216,060.99

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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.