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Finding the Fourth Proportional to 350,354.88, 525,925.44 and 140,139.36

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Solution

The fourth proportional to 350,354.88, 525,925.44 and 140,139.36 is: 210,366.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,354.88 : 525,925.44 = 140,139.36 : x
  2. Step 2: Convert to fraction form
    350,354.88/525,925.44 = 140,139.36/x
  3. Step 3: Cross multiply
    350,354.88x = 525,925.44 × 140,139.36
  4. Step 4: Simplify right side
    350,354.88x = 73,702,854,569.32
  5. Step 5: Solve for x
    x = 73,702,854,569.32/350,354.88
  6. Step 6: Final answer
    x = 210,366.29

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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.