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Finding the Fourth Proportional to 186,625,611.60, 279,938,417.40 and 57,253,189.20

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Solution

The fourth proportional to 186,625,611.60, 279,938,417.40 and 57,253,189.20 is: 85,879,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,625,611.60 : 279,938,417.40 = 57,253,189.20 : x
  2. Step 2: Convert to fraction form
    186,625,611.60/279,938,417.40 = 57,253,189.20/x
  3. Step 3: Cross multiply
    186,625,611.60x = 279,938,417.40 × 57,253,189.20
  4. Step 4: Simplify right side
    186,625,611.60x = 16,027,367,175,750,772
  5. Step 5: Solve for x
    x = 16,027,367,175,750,772/186,625,611.60
  6. Step 6: Final answer
    x = 85,879,783.80

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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.