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Finding the Fourth Proportional to 366,672,486.80, 550,251,017.40 and 172,639,384.40

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Solution

The fourth proportional to 366,672,486.80, 550,251,017.40 and 172,639,384.40 is: 259,073,152.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,672,486.80 : 550,251,017.40 = 172,639,384.40 : x
  2. Step 2: Convert to fraction form
    366,672,486.80/550,251,017.40 = 172,639,384.40/x
  3. Step 3: Cross multiply
    366,672,486.80x = 550,251,017.40 × 172,639,384.40
  4. Step 4: Simplify right side
    366,672,486.80x = 94,994,996,909,409,680
  5. Step 5: Solve for x
    x = 94,994,996,909,409,680/366,672,486.80
  6. Step 6: Final answer
    x = 259,073,152.01

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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.