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Finding the Fourth Proportional to 143,482.30, 214,713.15 and 124,965.70

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Solution

The fourth proportional to 143,482.30, 214,713.15 and 124,965.70 is: 187,004.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,482.30 : 214,713.15 = 124,965.70 : x
  2. Step 2: Convert to fraction form
    143,482.30/214,713.15 = 124,965.70/x
  3. Step 3: Cross multiply
    143,482.30x = 214,713.15 × 124,965.70
  4. Step 4: Simplify right side
    143,482.30x = 26,831,779,088.96
  5. Step 5: Solve for x
    x = 26,831,779,088.96/143,482.30
  6. Step 6: Final answer
    x = 187,004.10

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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.