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Finding the Fourth Proportional to 577,749.67, 866,449.53 and 156,970.87

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Solution

The fourth proportional to 577,749.67, 866,449.53 and 156,970.87 is: 235,408.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,749.67 : 866,449.53 = 156,970.87 : x
  2. Step 2: Convert to fraction form
    577,749.67/866,449.53 = 156,970.87/x
  3. Step 3: Cross multiply
    577,749.67x = 866,449.53 × 156,970.87
  4. Step 4: Simplify right side
    577,749.67x = 136,007,336,535.19
  5. Step 5: Solve for x
    x = 136,007,336,535.19/577,749.67
  6. Step 6: Final answer
    x = 235,408.77

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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.