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Finding the Fourth Proportional to 561,236.84, 841,854.54 and 140,512.67

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Solution

The fourth proportional to 561,236.84, 841,854.54 and 140,512.67 is: 210,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,236.84 : 841,854.54 = 140,512.67 : x
  2. Step 2: Convert to fraction form
    561,236.84/841,854.54 = 140,512.67/x
  3. Step 3: Cross multiply
    561,236.84x = 841,854.54 × 140,512.67
  4. Step 4: Simplify right side
    561,236.84x = 118,291,229,167.02
  5. Step 5: Solve for x
    x = 118,291,229,167.02/561,236.84
  6. Step 6: Final answer
    x = 210,768.82

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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.