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Finding the Fourth Proportional to 127,041.81, 175,311.72 and 70,451.97

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Solution

The fourth proportional to 127,041.81, 175,311.72 and 70,451.97 is: 97,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,041.81 : 175,311.72 = 70,451.97 : x
  2. Step 2: Convert to fraction form
    127,041.81/175,311.72 = 70,451.97/x
  3. Step 3: Cross multiply
    127,041.81x = 175,311.72 × 70,451.97
  4. Step 4: Simplify right side
    127,041.81x = 12,351,056,038.09
  5. Step 5: Solve for x
    x = 12,351,056,038.09/127,041.81
  6. Step 6: Final answer
    x = 97,220.40

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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.