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Finding the Fourth Proportional to 243,078.90, 364,574.34 and 65,544.18

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Solution

The fourth proportional to 243,078.90, 364,574.34 and 65,544.18 is: 98,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,078.90 : 364,574.34 = 65,544.18 : x
  2. Step 2: Convert to fraction form
    243,078.90/364,574.34 = 65,544.18/x
  3. Step 3: Cross multiply
    243,078.90x = 364,574.34 × 65,544.18
  4. Step 4: Simplify right side
    243,078.90x = 23,895,726,164.34
  5. Step 5: Solve for x
    x = 23,895,726,164.34/243,078.90
  6. Step 6: Final answer
    x = 98,304.40

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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.