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Finding the Fourth Proportional to 555,319.12, 832,978.71 and 134,594.98

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Solution

The fourth proportional to 555,319.12, 832,978.71 and 134,594.98 is: 201,892.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,319.12 : 832,978.71 = 134,594.98 : x
  2. Step 2: Convert to fraction form
    555,319.12/832,978.71 = 134,594.98/x
  3. Step 3: Cross multiply
    555,319.12x = 832,978.71 × 134,594.98
  4. Step 4: Simplify right side
    555,319.12x = 112,114,752,812.88
  5. Step 5: Solve for x
    x = 112,114,752,812.88/555,319.12
  6. Step 6: Final answer
    x = 201,892.48

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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.