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Finding the Fourth Proportional to 577,409.40, 866,114.10 and 156,737.40

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Solution

The fourth proportional to 577,409.40, 866,114.10 and 156,737.40 is: 235,106.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,409.40 : 866,114.10 = 156,737.40 : x
  2. Step 2: Convert to fraction form
    577,409.40/866,114.10 = 156,737.40/x
  3. Step 3: Cross multiply
    577,409.40x = 866,114.10 × 156,737.40
  4. Step 4: Simplify right side
    577,409.40x = 135,752,472,137.34
  5. Step 5: Solve for x
    x = 135,752,472,137.34/577,409.40
  6. Step 6: Final answer
    x = 235,106.10

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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.