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Finding the Fourth Proportional to 178,482.90, 267,853.83 and 143,840.82

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Solution

The fourth proportional to 178,482.90, 267,853.83 and 143,840.82 is: 215,865.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,482.90 : 267,853.83 = 143,840.82 : x
  2. Step 2: Convert to fraction form
    178,482.90/267,853.83 = 143,840.82/x
  3. Step 3: Cross multiply
    178,482.90x = 267,853.83 × 143,840.82
  4. Step 4: Simplify right side
    178,482.90x = 38,528,314,547.34
  5. Step 5: Solve for x
    x = 38,528,314,547.34/178,482.90
  6. Step 6: Final answer
    x = 215,865.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.