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Finding the Fourth Proportional to 192,927.32, 266,332.11 and 128,503.76

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Solution

The fourth proportional to 192,927.32, 266,332.11 and 128,503.76 is: 177,396.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,927.32 : 266,332.11 = 128,503.76 : x
  2. Step 2: Convert to fraction form
    192,927.32/266,332.11 = 128,503.76/x
  3. Step 3: Cross multiply
    192,927.32x = 266,332.11 × 128,503.76
  4. Step 4: Simplify right side
    192,927.32x = 34,224,677,543.73
  5. Step 5: Solve for x
    x = 34,224,677,543.73/192,927.32
  6. Step 6: Final answer
    x = 177,396.74

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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.