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Finding the Fourth Proportional to 94,452.88, 141,698.88 and 78,978.64

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Solution

The fourth proportional to 94,452.88, 141,698.88 and 78,978.64 is: 118,484.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,452.88 : 141,698.88 = 78,978.64 : x
  2. Step 2: Convert to fraction form
    94,452.88/141,698.88 = 78,978.64/x
  3. Step 3: Cross multiply
    94,452.88x = 141,698.88 × 78,978.64
  4. Step 4: Simplify right side
    94,452.88x = 11,191,184,831.92
  5. Step 5: Solve for x
    x = 11,191,184,831.92/94,452.88
  6. Step 6: Final answer
    x = 118,484.32

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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.