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Finding the Fourth Proportional to 131,663.64, 197,495.46 and 72,468.84

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Solution

The fourth proportional to 131,663.64, 197,495.46 and 72,468.84 is: 108,703.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,663.64 : 197,495.46 = 72,468.84 : x
  2. Step 2: Convert to fraction form
    131,663.64/197,495.46 = 72,468.84/x
  3. Step 3: Cross multiply
    131,663.64x = 197,495.46 × 72,468.84
  4. Step 4: Simplify right side
    131,663.64x = 14,312,266,891.47
  5. Step 5: Solve for x
    x = 14,312,266,891.47/131,663.64
  6. Step 6: Final answer
    x = 108,703.26

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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.