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Finding the Fourth Proportional to 255,693.01, 353,079.43 and 160,364.11

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Solution

The fourth proportional to 255,693.01, 353,079.43 and 160,364.11 is: 221,442.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,693.01 : 353,079.43 = 160,364.11 : x
  2. Step 2: Convert to fraction form
    255,693.01/353,079.43 = 160,364.11/x
  3. Step 3: Cross multiply
    255,693.01x = 353,079.43 × 160,364.11
  4. Step 4: Simplify right side
    255,693.01x = 56,621,268,551.26
  5. Step 5: Solve for x
    x = 56,621,268,551.26/255,693.01
  6. Step 6: Final answer
    x = 221,442.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.