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Finding the Fourth Proportional to 101,700.80, 140,402.96 and 69,483.86

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Solution

The fourth proportional to 101,700.80, 140,402.96 and 69,483.86 is: 95,925.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,700.80 : 140,402.96 = 69,483.86 : x
  2. Step 2: Convert to fraction form
    101,700.80/140,402.96 = 69,483.86/x
  3. Step 3: Cross multiply
    101,700.80x = 140,402.96 × 69,483.86
  4. Step 4: Simplify right side
    101,700.80x = 9,755,739,616.23
  5. Step 5: Solve for x
    x = 9,755,739,616.23/101,700.80
  6. Step 6: Final answer
    x = 95,925.89

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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.