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Finding the Fourth Proportional to 127,903.80, 176,376.51 and 84,868.23

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Solution

The fourth proportional to 127,903.80, 176,376.51 and 84,868.23 is: 117,031.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,903.80 : 176,376.51 = 84,868.23 : x
  2. Step 2: Convert to fraction form
    127,903.80/176,376.51 = 84,868.23/x
  3. Step 3: Cross multiply
    127,903.80x = 176,376.51 × 84,868.23
  4. Step 4: Simplify right side
    127,903.80x = 14,968,762,217.28
  5. Step 5: Solve for x
    x = 14,968,762,217.28/127,903.80
  6. Step 6: Final answer
    x = 117,031.41

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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.