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Finding the Fourth Proportional to 434,695.10, 651,987.20 and 168,273.32

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Solution

The fourth proportional to 434,695.10, 651,987.20 and 168,273.32 is: 252,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,695.10 : 651,987.20 = 168,273.32 : x
  2. Step 2: Convert to fraction form
    434,695.10/651,987.20 = 168,273.32/x
  3. Step 3: Cross multiply
    434,695.10x = 651,987.20 × 168,273.32
  4. Step 4: Simplify right side
    434,695.10x = 109,712,050,741.50
  5. Step 5: Solve for x
    x = 109,712,050,741.50/434,695.10
  6. Step 6: Final answer
    x = 252,388.51

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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.