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Finding the Fourth Proportional to 153,958.96, 212,440.56 and 93,498.08

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Solution

The fourth proportional to 153,958.96, 212,440.56 and 93,498.08 is: 129,013.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,958.96 : 212,440.56 = 93,498.08 : x
  2. Step 2: Convert to fraction form
    153,958.96/212,440.56 = 93,498.08/x
  3. Step 3: Cross multiply
    153,958.96x = 212,440.56 × 93,498.08
  4. Step 4: Simplify right side
    153,958.96x = 19,862,784,474.12
  5. Step 5: Solve for x
    x = 19,862,784,474.12/153,958.96
  6. Step 6: Final answer
    x = 129,013.50

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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.