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Finding the Fourth Proportional to 143,751.30, 215,549.10 and 64,773.06

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Solution

The fourth proportional to 143,751.30, 215,549.10 and 64,773.06 is: 97,124.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,751.30 : 215,549.10 = 64,773.06 : x
  2. Step 2: Convert to fraction form
    143,751.30/215,549.10 = 64,773.06/x
  3. Step 3: Cross multiply
    143,751.30x = 215,549.10 × 64,773.06
  4. Step 4: Simplify right side
    143,751.30x = 13,961,774,787.25
  5. Step 5: Solve for x
    x = 13,961,774,787.25/143,751.30
  6. Step 6: Final answer
    x = 97,124.51

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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.