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Finding the Fourth Proportional to 220,302.95, 304,019.91 and 119,700.95

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Solution

The fourth proportional to 220,302.95, 304,019.91 and 119,700.95 is: 165,188.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,302.95 : 304,019.91 = 119,700.95 : x
  2. Step 2: Convert to fraction form
    220,302.95/304,019.91 = 119,700.95/x
  3. Step 3: Cross multiply
    220,302.95x = 304,019.91 × 119,700.95
  4. Step 4: Simplify right side
    220,302.95x = 36,391,470,525.82
  5. Step 5: Solve for x
    x = 36,391,470,525.82/220,302.95
  6. Step 6: Final answer
    x = 165,188.31

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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.