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Finding the Fourth Proportional to 247,503.42, 341,554.50 and 140,071.50

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Solution

The fourth proportional to 247,503.42, 341,554.50 and 140,071.50 is: 193,298.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,503.42 : 341,554.50 = 140,071.50 : x
  2. Step 2: Convert to fraction form
    247,503.42/341,554.50 = 140,071.50/x
  3. Step 3: Cross multiply
    247,503.42x = 341,554.50 × 140,071.50
  4. Step 4: Simplify right side
    247,503.42x = 47,842,051,146.75
  5. Step 5: Solve for x
    x = 47,842,051,146.75/247,503.42
  6. Step 6: Final answer
    x = 193,298.55

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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.