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Finding the Fourth Proportional to 326,034.14, 489,121.59 and 101,390.18

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Solution

The fourth proportional to 326,034.14, 489,121.59 and 101,390.18 is: 152,107.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,034.14 : 489,121.59 = 101,390.18 : x
  2. Step 2: Convert to fraction form
    326,034.14/489,121.59 = 101,390.18/x
  3. Step 3: Cross multiply
    326,034.14x = 489,121.59 × 101,390.18
  4. Step 4: Simplify right side
    326,034.14x = 49,592,126,051.99
  5. Step 5: Solve for x
    x = 49,592,126,051.99/326,034.14
  6. Step 6: Final answer
    x = 152,107.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.