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Finding the Fourth Proportional to 543,347.12, 815,028 and 144,026.48

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Solution

The fourth proportional to 543,347.12, 815,028 and 144,026.48 is: 216,041.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,347.12 : 815,028 = 144,026.48 : x
  2. Step 2: Convert to fraction form
    543,347.12/815,028 = 144,026.48/x
  3. Step 3: Cross multiply
    543,347.12x = 815,028 × 144,026.48
  4. Step 4: Simplify right side
    543,347.12x = 117,385,613,941.44
  5. Step 5: Solve for x
    x = 117,385,613,941.44/543,347.12
  6. Step 6: Final answer
    x = 216,041.66

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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.