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Finding the Fourth Proportional to 101,534.88, 140,113.60 and 56,209.68

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Solution

The fourth proportional to 101,534.88, 140,113.60 and 56,209.68 is: 77,566.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,534.88 : 140,113.60 = 56,209.68 : x
  2. Step 2: Convert to fraction form
    101,534.88/140,113.60 = 56,209.68/x
  3. Step 3: Cross multiply
    101,534.88x = 140,113.60 × 56,209.68
  4. Step 4: Simplify right side
    101,534.88x = 7,875,740,479.12
  5. Step 5: Solve for x
    x = 7,875,740,479.12/101,534.88
  6. Step 6: Final answer
    x = 77,566.84

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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.