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Finding the Fourth Proportional to 114,980.40, 158,671.26 and 64,679.40

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Solution

The fourth proportional to 114,980.40, 158,671.26 and 64,679.40 is: 89,256.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,980.40 : 158,671.26 = 64,679.40 : x
  2. Step 2: Convert to fraction form
    114,980.40/158,671.26 = 64,679.40/x
  3. Step 3: Cross multiply
    114,980.40x = 158,671.26 × 64,679.40
  4. Step 4: Simplify right side
    114,980.40x = 10,262,761,894.04
  5. Step 5: Solve for x
    x = 10,262,761,894.04/114,980.40
  6. Step 6: Final answer
    x = 89,256.62

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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.