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Finding the Fourth Proportional to 121,459.01, 167,613.66 and 67,747.50

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Solution

The fourth proportional to 121,459.01, 167,613.66 and 67,747.50 is: 93,491.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,459.01 : 167,613.66 = 67,747.50 : x
  2. Step 2: Convert to fraction form
    121,459.01/167,613.66 = 67,747.50/x
  3. Step 3: Cross multiply
    121,459.01x = 167,613.66 × 67,747.50
  4. Step 4: Simplify right side
    121,459.01x = 11,355,406,430.85
  5. Step 5: Solve for x
    x = 11,355,406,430.85/121,459.01
  6. Step 6: Final answer
    x = 93,491.68

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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.