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Finding the Fourth Proportional to 108,570.16, 149,826 and 60,823.90

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Solution

The fourth proportional to 108,570.16, 149,826 and 60,823.90 is: 83,936.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,570.16 : 149,826 = 60,823.90 : x
  2. Step 2: Convert to fraction form
    108,570.16/149,826 = 60,823.90/x
  3. Step 3: Cross multiply
    108,570.16x = 149,826 × 60,823.90
  4. Step 4: Simplify right side
    108,570.16x = 9,113,001,641.40
  5. Step 5: Solve for x
    x = 9,113,001,641.40/108,570.16
  6. Step 6: Final answer
    x = 83,936.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.