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Finding the Fourth Proportional to 201,065,862.40, 301,598,793.60 and 124,538,358.40

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Solution

The fourth proportional to 201,065,862.40, 301,598,793.60 and 124,538,358.40 is: 186,807,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,065,862.40 : 301,598,793.60 = 124,538,358.40 : x
  2. Step 2: Convert to fraction form
    201,065,862.40/301,598,793.60 = 124,538,358.40/x
  3. Step 3: Cross multiply
    201,065,862.40x = 301,598,793.60 × 124,538,358.40
  4. Step 4: Simplify right side
    201,065,862.40x = 37,560,618,650,364,432
  5. Step 5: Solve for x
    x = 37,560,618,650,364,432/201,065,862.40
  6. Step 6: Final answer
    x = 186,807,537.60

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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.