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Finding the Fourth Proportional to 121,152.99, 167,189.34 and 67,437.93

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Solution

The fourth proportional to 121,152.99, 167,189.34 and 67,437.93 is: 93,063.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,152.99 : 167,189.34 = 67,437.93 : x
  2. Step 2: Convert to fraction form
    121,152.99/167,189.34 = 67,437.93/x
  3. Step 3: Cross multiply
    121,152.99x = 167,189.34 × 67,437.93
  4. Step 4: Simplify right side
    121,152.99x = 11,274,903,007.67
  5. Step 5: Solve for x
    x = 11,274,903,007.67/121,152.99
  6. Step 6: Final answer
    x = 93,063.35

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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.