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Finding the Fourth Proportional to 127,602.65, 176,087.98 and 71,012.81

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Solution

The fourth proportional to 127,602.65, 176,087.98 and 71,012.81 is: 97,995.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,602.65 : 176,087.98 = 71,012.81 : x
  2. Step 2: Convert to fraction form
    127,602.65/176,087.98 = 71,012.81/x
  3. Step 3: Cross multiply
    127,602.65x = 176,087.98 × 71,012.81
  4. Step 4: Simplify right side
    127,602.65x = 12,504,502,267.02
  5. Step 5: Solve for x
    x = 12,504,502,267.02/127,602.65
  6. Step 6: Final answer
    x = 97,995.63

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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.