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Finding the Fourth Proportional to 555,311.28, 832,966.88 and 134,587.16

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Solution

The fourth proportional to 555,311.28, 832,966.88 and 134,587.16 is: 201,880.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,311.28 : 832,966.88 = 134,587.16 : x
  2. Step 2: Convert to fraction form
    555,311.28/832,966.88 = 134,587.16/x
  3. Step 3: Cross multiply
    555,311.28x = 832,966.88 × 134,587.16
  4. Step 4: Simplify right side
    555,311.28x = 112,106,646,753.26
  5. Step 5: Solve for x
    x = 112,106,646,753.26/555,311.28
  6. Step 6: Final answer
    x = 201,880.73

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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.