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Finding the Fourth Proportional to 115,551.70, 173,385.15 and 65,670.10

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Solution

The fourth proportional to 115,551.70, 173,385.15 and 65,670.10 is: 98,537.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,551.70 : 173,385.15 = 65,670.10 : x
  2. Step 2: Convert to fraction form
    115,551.70/173,385.15 = 65,670.10/x
  3. Step 3: Cross multiply
    115,551.70x = 173,385.15 × 65,670.10
  4. Step 4: Simplify right side
    115,551.70x = 11,386,220,139.02
  5. Step 5: Solve for x
    x = 11,386,220,139.02/115,551.70
  6. Step 6: Final answer
    x = 98,537.89

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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.