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Finding the Fourth Proportional to 74,885,966.60, 105,067,101.40 and 74,885,966.60

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Solution

The fourth proportional to 74,885,966.60, 105,067,101.40 and 74,885,966.60 is: 105,067,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,885,966.60 : 105,067,101.40 = 74,885,966.60 : x
  2. Step 2: Convert to fraction form
    74,885,966.60/105,067,101.40 = 74,885,966.60/x
  3. Step 3: Cross multiply
    74,885,966.60x = 105,067,101.40 × 74,885,966.60
  4. Step 4: Simplify right side
    74,885,966.60x = 7,868,051,446,199,213
  5. Step 5: Solve for x
    x = 7,868,051,446,199,213/74,885,966.60
  6. Step 6: Final answer
    x = 105,067,101.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.