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Finding the Fourth Proportional to 454,368.56, 681,559.90 and 134,552.78

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Solution

The fourth proportional to 454,368.56, 681,559.90 and 134,552.78 is: 201,831.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,368.56 : 681,559.90 = 134,552.78 : x
  2. Step 2: Convert to fraction form
    454,368.56/681,559.90 = 134,552.78/x
  3. Step 3: Cross multiply
    454,368.56x = 681,559.90 × 134,552.78
  4. Step 4: Simplify right side
    454,368.56x = 91,705,779,281.52
  5. Step 5: Solve for x
    x = 91,705,779,281.52/454,368.56
  6. Step 6: Final answer
    x = 201,831.26

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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.