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Finding the Fourth Proportional to 127,407.75, 175,822.81 and 70,048.05

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Solution

The fourth proportional to 127,407.75, 175,822.81 and 70,048.05 is: 96,666.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,407.75 : 175,822.81 = 70,048.05 : x
  2. Step 2: Convert to fraction form
    127,407.75/175,822.81 = 70,048.05/x
  3. Step 3: Cross multiply
    127,407.75x = 175,822.81 × 70,048.05
  4. Step 4: Simplify right side
    127,407.75x = 12,316,044,986.02
  5. Step 5: Solve for x
    x = 12,316,044,986.02/127,407.75
  6. Step 6: Final answer
    x = 96,666.37

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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.