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Finding the Fourth Proportional to 186,633,807.60, 279,992,701.80 and 109,917,346.80

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Solution

The fourth proportional to 186,633,807.60, 279,992,701.80 and 109,917,346.80 is: 164,900,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,633,807.60 : 279,992,701.80 = 109,917,346.80 : x
  2. Step 2: Convert to fraction form
    186,633,807.60/279,992,701.80 = 109,917,346.80/x
  3. Step 3: Cross multiply
    186,633,807.60x = 279,992,701.80 × 109,917,346.80
  4. Step 4: Simplify right side
    186,633,807.60x = 30,776,054,905,219,584
  5. Step 5: Solve for x
    x = 30,776,054,905,219,584/186,633,807.60
  6. Step 6: Final answer
    x = 164,900,750.30

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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.