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Finding the Fourth Proportional to 178,066.95, 267,000.58 and 121,970.40

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Solution

The fourth proportional to 178,066.95, 267,000.58 and 121,970.40 is: 182,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,066.95 : 267,000.58 = 121,970.40 : x
  2. Step 2: Convert to fraction form
    178,066.95/267,000.58 = 121,970.40/x
  3. Step 3: Cross multiply
    178,066.95x = 267,000.58 × 121,970.40
  4. Step 4: Simplify right side
    178,066.95x = 32,566,167,542.83
  5. Step 5: Solve for x
    x = 32,566,167,542.83/178,066.95
  6. Step 6: Final answer
    x = 182,887.21

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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.