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Finding the Fourth Proportional to 272,644.76, 376,210.14 and 159,445.64

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Solution

The fourth proportional to 272,644.76, 376,210.14 and 159,445.64 is: 220,011.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,644.76 : 376,210.14 = 159,445.64 : x
  2. Step 2: Convert to fraction form
    272,644.76/376,210.14 = 159,445.64/x
  3. Step 3: Cross multiply
    272,644.76x = 376,210.14 × 159,445.64
  4. Step 4: Simplify right side
    272,644.76x = 59,985,066,546.79
  5. Step 5: Solve for x
    x = 59,985,066,546.79/272,644.76
  6. Step 6: Final answer
    x = 220,011.81

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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.