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Finding the Fourth Proportional to 285,065.06, 427,593.11 and 98,078.18

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Solution

The fourth proportional to 285,065.06, 427,593.11 and 98,078.18 is: 147,115.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,065.06 : 427,593.11 = 98,078.18 : x
  2. Step 2: Convert to fraction form
    285,065.06/427,593.11 = 98,078.18/x
  3. Step 3: Cross multiply
    285,065.06x = 427,593.11 × 98,078.18
  4. Step 4: Simplify right side
    285,065.06x = 41,937,554,009.34
  5. Step 5: Solve for x
    x = 41,937,554,009.34/285,065.06
  6. Step 6: Final answer
    x = 147,115.73

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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.