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Finding the Fourth Proportional to 127,758.60, 191,495.34 and 56,695.68

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Solution

The fourth proportional to 127,758.60, 191,495.34 and 56,695.68 is: 84,980.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,758.60 : 191,495.34 = 56,695.68 : x
  2. Step 2: Convert to fraction form
    127,758.60/191,495.34 = 56,695.68/x
  3. Step 3: Cross multiply
    127,758.60x = 191,495.34 × 56,695.68
  4. Step 4: Simplify right side
    127,758.60x = 10,856,958,518.13
  5. Step 5: Solve for x
    x = 10,856,958,518.13/127,758.60
  6. Step 6: Final answer
    x = 84,980.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.