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Finding the Fourth Proportional to 127,884.84, 176,478.74 and 70,529.47

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Solution

The fourth proportional to 127,884.84, 176,478.74 and 70,529.47 is: 97,329.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,884.84 : 176,478.74 = 70,529.47 : x
  2. Step 2: Convert to fraction form
    127,884.84/176,478.74 = 70,529.47/x
  3. Step 3: Cross multiply
    127,884.84x = 176,478.74 × 70,529.47
  4. Step 4: Simplify right side
    127,884.84x = 12,446,951,733.59
  5. Step 5: Solve for x
    x = 12,446,951,733.59/127,884.84
  6. Step 6: Final answer
    x = 97,329.38

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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.