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Finding the Fourth Proportional to 140,575.55, 210,630.05 and 98,935.07

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Solution

The fourth proportional to 140,575.55, 210,630.05 and 98,935.07 is: 148,238.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,575.55 : 210,630.05 = 98,935.07 : x
  2. Step 2: Convert to fraction form
    140,575.55/210,630.05 = 98,935.07/x
  3. Step 3: Cross multiply
    140,575.55x = 210,630.05 × 98,935.07
  4. Step 4: Simplify right side
    140,575.55x = 20,838,698,246.18
  5. Step 5: Solve for x
    x = 20,838,698,246.18/140,575.55
  6. Step 6: Final answer
    x = 148,238.43

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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.