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Finding the Fourth Proportional to 272,482.68, 376,015.46 and 151,629.06

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Solution

The fourth proportional to 272,482.68, 376,015.46 and 151,629.06 is: 209,242.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,482.68 : 376,015.46 = 151,629.06 : x
  2. Step 2: Convert to fraction form
    272,482.68/376,015.46 = 151,629.06/x
  3. Step 3: Cross multiply
    272,482.68x = 376,015.46 × 151,629.06
  4. Step 4: Simplify right side
    272,482.68x = 57,014,869,987.12
  5. Step 5: Solve for x
    x = 57,014,869,987.12/272,482.68
  6. Step 6: Final answer
    x = 209,242.18

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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.