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Finding the Fourth Proportional to 65,672,947.80, 98,509,421.70 and 41,486,477.40

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Solution

The fourth proportional to 65,672,947.80, 98,509,421.70 and 41,486,477.40 is: 62,229,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,672,947.80 : 98,509,421.70 = 41,486,477.40 : x
  2. Step 2: Convert to fraction form
    65,672,947.80/98,509,421.70 = 41,486,477.40/x
  3. Step 3: Cross multiply
    65,672,947.80x = 98,509,421.70 × 41,486,477.40
  4. Step 4: Simplify right side
    65,672,947.80x = 4,086,808,897,044,119.50
  5. Step 5: Solve for x
    x = 4,086,808,897,044,119.50/65,672,947.80
  6. Step 6: Final answer
    x = 62,229,716.10

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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.