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Finding the Fourth Proportional to 121,523.64, 167,675.82 and 70,506.84

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Solution

The fourth proportional to 121,523.64, 167,675.82 and 70,506.84 is: 97,283.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,523.64 : 167,675.82 = 70,506.84 : x
  2. Step 2: Convert to fraction form
    121,523.64/167,675.82 = 70,506.84/x
  3. Step 3: Cross multiply
    121,523.64x = 167,675.82 × 70,506.84
  4. Step 4: Simplify right side
    121,523.64x = 11,822,292,212.61
  5. Step 5: Solve for x
    x = 11,822,292,212.61/121,523.64
  6. Step 6: Final answer
    x = 97,283.89

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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.