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Finding the Fourth Proportional to 101,601.68, 140,210.90 and 56,281.12

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Solution

The fourth proportional to 101,601.68, 140,210.90 and 56,281.12 is: 77,668.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,601.68 : 140,210.90 = 56,281.12 : x
  2. Step 2: Convert to fraction form
    101,601.68/140,210.90 = 56,281.12/x
  3. Step 3: Cross multiply
    101,601.68x = 140,210.90 × 56,281.12
  4. Step 4: Simplify right side
    101,601.68x = 7,891,226,488.21
  5. Step 5: Solve for x
    x = 7,891,226,488.21/101,601.68
  6. Step 6: Final answer
    x = 77,668.27

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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.