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Finding the Fourth Proportional to 555,311.12, 832,966.70 and 134,586.98

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Solution

The fourth proportional to 555,311.12, 832,966.70 and 134,586.98 is: 201,880.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,311.12 : 832,966.70 = 134,586.98 : x
  2. Step 2: Convert to fraction form
    555,311.12/832,966.70 = 134,586.98/x
  3. Step 3: Cross multiply
    555,311.12x = 832,966.70 × 134,586.98
  4. Step 4: Simplify right side
    555,311.12x = 112,106,472,593.57
  5. Step 5: Solve for x
    x = 112,106,472,593.57/555,311.12
  6. Step 6: Final answer
    x = 201,880.47

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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.