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Finding the Fourth Proportional to 186,625,609.80, 279,938,414.70 and 65,441,315.40

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Solution

The fourth proportional to 186,625,609.80, 279,938,414.70 and 65,441,315.40 is: 98,161,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,625,609.80 : 279,938,414.70 = 65,441,315.40 : x
  2. Step 2: Convert to fraction form
    186,625,609.80/279,938,414.70 = 65,441,315.40/x
  3. Step 3: Cross multiply
    186,625,609.80x = 279,938,414.70 × 65,441,315.40
  4. Step 4: Simplify right side
    186,625,609.80x = 18,319,538,088,958,696
  5. Step 5: Solve for x
    x = 18,319,538,088,958,696/186,625,609.80
  6. Step 6: Final answer
    x = 98,161,973.10

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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.