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Finding the Fourth Proportional to 366,933.40, 550,400.10 and 156,981.40

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Solution

The fourth proportional to 366,933.40, 550,400.10 and 156,981.40 is: 235,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,933.40 : 550,400.10 = 156,981.40 : x
  2. Step 2: Convert to fraction form
    366,933.40/550,400.10 = 156,981.40/x
  3. Step 3: Cross multiply
    366,933.40x = 550,400.10 × 156,981.40
  4. Step 4: Simplify right side
    366,933.40x = 86,402,578,258.14
  5. Step 5: Solve for x
    x = 86,402,578,258.14/366,933.40
  6. Step 6: Final answer
    x = 235,472.10

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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.