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Finding the Fourth Proportional to 553,177,353.20, 829,808,020.20 and 164,969,884.40

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Solution

The fourth proportional to 553,177,353.20, 829,808,020.20 and 164,969,884.40 is: 247,467,349.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,177,353.20 : 829,808,020.20 = 164,969,884.40 : x
  2. Step 2: Convert to fraction form
    553,177,353.20/829,808,020.20 = 164,969,884.40/x
  3. Step 3: Cross multiply
    553,177,353.20x = 829,808,020.20 × 164,969,884.40
  4. Step 4: Simplify right side
    553,177,353.20x = 136,893,333,166,586,880
  5. Step 5: Solve for x
    x = 136,893,333,166,586,880/553,177,353.20
  6. Step 6: Final answer
    x = 247,467,349.08

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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.