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Finding the Fourth Proportional to 109,895.56, 151,590.90 and 70,151.56

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Solution

The fourth proportional to 109,895.56, 151,590.90 and 70,151.56 is: 96,767.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,895.56 : 151,590.90 = 70,151.56 : x
  2. Step 2: Convert to fraction form
    109,895.56/151,590.90 = 70,151.56/x
  3. Step 3: Cross multiply
    109,895.56x = 151,590.90 × 70,151.56
  4. Step 4: Simplify right side
    109,895.56x = 10,634,338,116.80
  5. Step 5: Solve for x
    x = 10,634,338,116.80/109,895.56
  6. Step 6: Final answer
    x = 96,767.68

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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.