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Finding the Fourth Proportional to 553,362.10, 830,159.79 and 179,355.94

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Solution

The fourth proportional to 553,362.10, 830,159.79 and 179,355.94 is: 269,071.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,362.10 : 830,159.79 = 179,355.94 : x
  2. Step 2: Convert to fraction form
    553,362.10/830,159.79 = 179,355.94/x
  3. Step 3: Cross multiply
    553,362.10x = 830,159.79 × 179,355.94
  4. Step 4: Simplify right side
    553,362.10x = 148,894,086,737.67
  5. Step 5: Solve for x
    x = 148,894,086,737.67/553,362.10
  6. Step 6: Final answer
    x = 269,071.71

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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.