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Finding the Fourth Proportional to 109,131.80, 163,697.70 and 96,009.80

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Solution

The fourth proportional to 109,131.80, 163,697.70 and 96,009.80 is: 144,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,131.80 : 163,697.70 = 96,009.80 : x
  2. Step 2: Convert to fraction form
    109,131.80/163,697.70 = 96,009.80/x
  3. Step 3: Cross multiply
    109,131.80x = 163,697.70 × 96,009.80
  4. Step 4: Simplify right side
    109,131.80x = 15,716,583,437.46
  5. Step 5: Solve for x
    x = 15,716,583,437.46/109,131.80
  6. Step 6: Final answer
    x = 144,014.70

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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.