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Finding the Fourth Proportional to 127,604.79, 176,091.50 and 70,243.59

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Solution

The fourth proportional to 127,604.79, 176,091.50 and 70,243.59 is: 96,934.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,604.79 : 176,091.50 = 70,243.59 : x
  2. Step 2: Convert to fraction form
    127,604.79/176,091.50 = 70,243.59/x
  3. Step 3: Cross multiply
    127,604.79x = 176,091.50 × 70,243.59
  4. Step 4: Simplify right side
    127,604.79x = 12,369,299,569.32
  5. Step 5: Solve for x
    x = 12,369,299,569.32/127,604.79
  6. Step 6: Final answer
    x = 96,934.45

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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.