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Finding the Fourth Proportional to 357,125.40, 535,707.54 and 107,800.92

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Solution

The fourth proportional to 357,125.40, 535,707.54 and 107,800.92 is: 161,707.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,125.40 : 535,707.54 = 107,800.92 : x
  2. Step 2: Convert to fraction form
    357,125.40/535,707.54 = 107,800.92/x
  3. Step 3: Cross multiply
    357,125.40x = 535,707.54 × 107,800.92
  4. Step 4: Simplify right side
    357,125.40x = 57,749,765,662.94
  5. Step 5: Solve for x
    x = 57,749,765,662.94/357,125.40
  6. Step 6: Final answer
    x = 161,707.25

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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.