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Finding the Fourth Proportional to 65,672,442.40, 98,508,663.60 and 17,803,386.40

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Solution

The fourth proportional to 65,672,442.40, 98,508,663.60 and 17,803,386.40 is: 26,705,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,672,442.40 : 98,508,663.60 = 17,803,386.40 : x
  2. Step 2: Convert to fraction form
    65,672,442.40/98,508,663.60 = 17,803,386.40/x
  3. Step 3: Cross multiply
    65,672,442.40x = 98,508,663.60 × 17,803,386.40
  4. Step 4: Simplify right side
    65,672,442.40x = 1,753,787,801,818,414.75
  5. Step 5: Solve for x
    x = 1,753,787,801,818,414.75/65,672,442.40
  6. Step 6: Final answer
    x = 26,705,079.60

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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.