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Finding the Fourth Proportional to 110,673.72, 152,693.64 and 65,336.40

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Solution

The fourth proportional to 110,673.72, 152,693.64 and 65,336.40 is: 90,142.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,673.72 : 152,693.64 = 65,336.40 : x
  2. Step 2: Convert to fraction form
    110,673.72/152,693.64 = 65,336.40/x
  3. Step 3: Cross multiply
    110,673.72x = 152,693.64 × 65,336.40
  4. Step 4: Simplify right side
    110,673.72x = 9,976,452,740.50
  5. Step 5: Solve for x
    x = 9,976,452,740.50/110,673.72
  6. Step 6: Final answer
    x = 90,142.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.