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Finding the Fourth Proportional to 91,841.40, 137,749.02 and 29,503.80

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Solution

The fourth proportional to 91,841.40, 137,749.02 and 29,503.80 is: 44,251.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,841.40 : 137,749.02 = 29,503.80 : x
  2. Step 2: Convert to fraction form
    91,841.40/137,749.02 = 29,503.80/x
  3. Step 3: Cross multiply
    91,841.40x = 137,749.02 × 29,503.80
  4. Step 4: Simplify right side
    91,841.40x = 4,064,119,536.28
  5. Step 5: Solve for x
    x = 4,064,119,536.28/91,841.40
  6. Step 6: Final answer
    x = 44,251.50

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1.5x scale

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.