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Finding the Fourth Proportional to 145,014.76, 217,476.06 and 98,566.12

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Solution

The fourth proportional to 145,014.76, 217,476.06 and 98,566.12 is: 147,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,014.76 : 217,476.06 = 98,566.12 : x
  2. Step 2: Convert to fraction form
    145,014.76/217,476.06 = 98,566.12/x
  3. Step 3: Cross multiply
    145,014.76x = 217,476.06 × 98,566.12
  4. Step 4: Simplify right side
    145,014.76x = 21,435,771,427.09
  5. Step 5: Solve for x
    x = 21,435,771,427.09/145,014.76
  6. Step 6: Final answer
    x = 147,817.86

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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.