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Finding the Fourth Proportional to 275,648.96, 380,437.20 and 168,281.60

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Solution

The fourth proportional to 275,648.96, 380,437.20 and 168,281.60 is: 232,254.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,648.96 : 380,437.20 = 168,281.60 : x
  2. Step 2: Convert to fraction form
    275,648.96/380,437.20 = 168,281.60/x
  3. Step 3: Cross multiply
    275,648.96x = 380,437.20 × 168,281.60
  4. Step 4: Simplify right side
    275,648.96x = 64,020,580,715.52
  5. Step 5: Solve for x
    x = 64,020,580,715.52/275,648.96
  6. Step 6: Final answer
    x = 232,254.03

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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.