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Finding the Fourth Proportional to 61,813.40, 92,720.10 and 61,813.40

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Solution

The fourth proportional to 61,813.40, 92,720.10 and 61,813.40 is: 92,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,813.40 : 92,720.10 = 61,813.40 : x
  2. Step 2: Convert to fraction form
    61,813.40/92,720.10 = 61,813.40/x
  3. Step 3: Cross multiply
    61,813.40x = 92,720.10 × 61,813.40
  4. Step 4: Simplify right side
    61,813.40x = 5,731,344,629.34
  5. Step 5: Solve for x
    x = 5,731,344,629.34/61,813.40
  6. Step 6: Final answer
    x = 92,720.10

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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.