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Finding the Fourth Proportional to 265,851.01, 398,774.46 and 66,170.06

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Solution

The fourth proportional to 265,851.01, 398,774.46 and 66,170.06 is: 99,254.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,851.01 : 398,774.46 = 66,170.06 : x
  2. Step 2: Convert to fraction form
    265,851.01/398,774.46 = 66,170.06/x
  3. Step 3: Cross multiply
    265,851.01x = 398,774.46 × 66,170.06
  4. Step 4: Simplify right side
    265,851.01x = 26,386,929,613.82
  5. Step 5: Solve for x
    x = 26,386,929,613.82/265,851.01
  6. Step 6: Final answer
    x = 99,254.58

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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.