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Finding the Fourth Proportional to 118,909.98, 164,102.49 and 70,540.56

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Solution

The fourth proportional to 118,909.98, 164,102.49 and 70,540.56 is: 97,349.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,909.98 : 164,102.49 = 70,540.56 : x
  2. Step 2: Convert to fraction form
    118,909.98/164,102.49 = 70,540.56/x
  3. Step 3: Cross multiply
    118,909.98x = 164,102.49 × 70,540.56
  4. Step 4: Simplify right side
    118,909.98x = 11,575,881,541.99
  5. Step 5: Solve for x
    x = 11,575,881,541.99/118,909.98
  6. Step 6: Final answer
    x = 97,349.96

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1.5x scale

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.