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Finding the Fourth Proportional to 272,880.72, 376,602.96 and 152,041.68

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Solution

The fourth proportional to 272,880.72, 376,602.96 and 152,041.68 is: 209,832.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,880.72 : 376,602.96 = 152,041.68 : x
  2. Step 2: Convert to fraction form
    272,880.72/376,602.96 = 152,041.68/x
  3. Step 3: Cross multiply
    272,880.72x = 376,602.96 × 152,041.68
  4. Step 4: Simplify right side
    272,880.72x = 57,259,346,731.37
  5. Step 5: Solve for x
    x = 57,259,346,731.37/272,880.72
  6. Step 6: Final answer
    x = 209,832.88

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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.