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Finding the Fourth Proportional to 193,262,564.60, 289,893,846.90 and 65,611,748.60

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Solution

The fourth proportional to 193,262,564.60, 289,893,846.90 and 65,611,748.60 is: 98,417,622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,262,564.60 : 289,893,846.90 = 65,611,748.60 : x
  2. Step 2: Convert to fraction form
    193,262,564.60/289,893,846.90 = 65,611,748.60/x
  3. Step 3: Cross multiply
    193,262,564.60x = 289,893,846.90 × 65,611,748.60
  4. Step 4: Simplify right side
    193,262,564.60x = 19,020,442,203,489,688
  5. Step 5: Solve for x
    x = 19,020,442,203,489,688/193,262,564.60
  6. Step 6: Final answer
    x = 98,417,622.90

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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.