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Finding the Fourth Proportional to 131,006.40, 196,509.60 and 117,009.60

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Solution

The fourth proportional to 131,006.40, 196,509.60 and 117,009.60 is: 175,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,006.40 : 196,509.60 = 117,009.60 : x
  2. Step 2: Convert to fraction form
    131,006.40/196,509.60 = 117,009.60/x
  3. Step 3: Cross multiply
    131,006.40x = 196,509.60 × 117,009.60
  4. Step 4: Simplify right side
    131,006.40x = 22,993,509,692.16
  5. Step 5: Solve for x
    x = 22,993,509,692.16/131,006.40
  6. Step 6: Final answer
    x = 175,514.40

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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.