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Finding the Fourth Proportional to 115,924.80, 173,887.20 and 56,798.40

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Solution

The fourth proportional to 115,924.80, 173,887.20 and 56,798.40 is: 85,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,924.80 : 173,887.20 = 56,798.40 : x
  2. Step 2: Convert to fraction form
    115,924.80/173,887.20 = 56,798.40/x
  3. Step 3: Cross multiply
    115,924.80x = 173,887.20 × 56,798.40
  4. Step 4: Simplify right side
    115,924.80x = 9,876,514,740.48
  5. Step 5: Solve for x
    x = 9,876,514,740.48/115,924.80
  6. Step 6: Final answer
    x = 85,197.60

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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.