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Finding the Fourth Proportional to 261,099.70, 360,435.65 and 164,445.60

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Solution

The fourth proportional to 261,099.70, 360,435.65 and 164,445.60 is: 227,009.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,099.70 : 360,435.65 = 164,445.60 : x
  2. Step 2: Convert to fraction form
    261,099.70/360,435.65 = 164,445.60/x
  3. Step 3: Cross multiply
    261,099.70x = 360,435.65 × 164,445.60
  4. Step 4: Simplify right side
    261,099.70x = 59,272,057,050.70
  5. Step 5: Solve for x
    x = 59,272,057,050.70/261,099.70
  6. Step 6: Final answer
    x = 227,009.29

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1.5x scale

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.