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Finding the Fourth Proportional to 93,177.80, 128,587.46 and 52,887.79

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Solution

The fourth proportional to 93,177.80, 128,587.46 and 52,887.79 is: 72,986.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,177.80 : 128,587.46 = 52,887.79 : x
  2. Step 2: Convert to fraction form
    93,177.80/128,587.46 = 52,887.79/x
  3. Step 3: Cross multiply
    93,177.80x = 128,587.46 × 52,887.79
  4. Step 4: Simplify right side
    93,177.80x = 6,800,706,391.86
  5. Step 5: Solve for x
    x = 6,800,706,391.86/93,177.80
  6. Step 6: Final answer
    x = 72,986.34

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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.