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Finding the Fourth Proportional to 82,944,005.60, 124,416,008.40 and 50,695,378.40

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Solution

The fourth proportional to 82,944,005.60, 124,416,008.40 and 50,695,378.40 is: 76,043,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,944,005.60 : 124,416,008.40 = 50,695,378.40 : x
  2. Step 2: Convert to fraction form
    82,944,005.60/124,416,008.40 = 50,695,378.40/x
  3. Step 3: Cross multiply
    82,944,005.60x = 124,416,008.40 × 50,695,378.40
  4. Step 4: Simplify right side
    82,944,005.60x = 6,307,316,624,855,579
  5. Step 5: Solve for x
    x = 6,307,316,624,855,579/82,944,005.60
  6. Step 6: Final answer
    x = 76,043,067.60

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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.