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Finding the Fourth Proportional to 127,403.87, 175,866.35 and 84,946.91

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Solution

The fourth proportional to 127,403.87, 175,866.35 and 84,946.91 is: 117,259.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,403.87 : 175,866.35 = 84,946.91 : x
  2. Step 2: Convert to fraction form
    127,403.87/175,866.35 = 84,946.91/x
  3. Step 3: Cross multiply
    127,403.87x = 175,866.35 × 84,946.91
  4. Step 4: Simplify right side
    127,403.87x = 14,939,301,701.41
  5. Step 5: Solve for x
    x = 14,939,301,701.41/127,403.87
  6. Step 6: Final answer
    x = 117,259.41

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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.