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Finding the Fourth Proportional to 66,672,695.60, 100,009,043.40 and 37,974,881.60

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Solution

The fourth proportional to 66,672,695.60, 100,009,043.40 and 37,974,881.60 is: 56,962,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,672,695.60 : 100,009,043.40 = 37,974,881.60 : x
  2. Step 2: Convert to fraction form
    66,672,695.60/100,009,043.40 = 37,974,881.60/x
  3. Step 3: Cross multiply
    66,672,695.60x = 100,009,043.40 × 37,974,881.60
  4. Step 4: Simplify right side
    66,672,695.60x = 3,797,831,582,044,262
  5. Step 5: Solve for x
    x = 3,797,831,582,044,262/66,672,695.60
  6. Step 6: Final answer
    x = 56,962,322.40

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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.