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Finding the Fourth Proportional to 158,064.96, 218,135.66 and 90,092.67

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Solution

The fourth proportional to 158,064.96, 218,135.66 and 90,092.67 is: 124,331.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,064.96 : 218,135.66 = 90,092.67 : x
  2. Step 2: Convert to fraction form
    158,064.96/218,135.66 = 90,092.67/x
  3. Step 3: Cross multiply
    158,064.96x = 218,135.66 × 90,092.67
  4. Step 4: Simplify right side
    158,064.96x = 19,652,423,581.15
  5. Step 5: Solve for x
    x = 19,652,423,581.15/158,064.96
  6. Step 6: Final answer
    x = 124,331.31

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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.