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Finding the Fourth Proportional to 82,972,885.60, 124,459,328.40 and 22,388,514.40

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Solution

The fourth proportional to 82,972,885.60, 124,459,328.40 and 22,388,514.40 is: 33,582,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,972,885.60 : 124,459,328.40 = 22,388,514.40 : x
  2. Step 2: Convert to fraction form
    82,972,885.60/124,459,328.40 = 22,388,514.40/x
  3. Step 3: Cross multiply
    82,972,885.60x = 124,459,328.40 × 22,388,514.40
  4. Step 4: Simplify right side
    82,972,885.60x = 2,786,459,466,097,729
  5. Step 5: Solve for x
    x = 2,786,459,466,097,729/82,972,885.60
  6. Step 6: Final answer
    x = 33,582,771.60

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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.