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Finding the Fourth Proportional to 117,503.68, 176,196.96 and 42,620.80

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Solution

The fourth proportional to 117,503.68, 176,196.96 and 42,620.80 is: 63,909.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,503.68 : 176,196.96 = 42,620.80 : x
  2. Step 2: Convert to fraction form
    117,503.68/176,196.96 = 42,620.80/x
  3. Step 3: Cross multiply
    117,503.68x = 176,196.96 × 42,620.80
  4. Step 4: Simplify right side
    117,503.68x = 7,509,655,392.77
  5. Step 5: Solve for x
    x = 7,509,655,392.77/117,503.68
  6. Step 6: Final answer
    x = 63,909.96

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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.