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Finding the Fourth Proportional to 145,154, 217,575.48 and 60,892.94

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Solution

The fourth proportional to 145,154, 217,575.48 and 60,892.94 is: 91,274.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,154 : 217,575.48 = 60,892.94 : x
  2. Step 2: Convert to fraction form
    145,154/217,575.48 = 60,892.94/x
  3. Step 3: Cross multiply
    145,154x = 217,575.48 × 60,892.94
  4. Step 4: Simplify right side
    145,154x = 13,248,810,649.11
  5. Step 5: Solve for x
    x = 13,248,810,649.11/145,154
  6. Step 6: Final answer
    x = 91,274.17

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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.