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Finding the Fourth Proportional to 130,354.44, 179,889.13 and 70,738.44

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Solution

The fourth proportional to 130,354.44, 179,889.13 and 70,738.44 is: 97,619.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,354.44 : 179,889.13 = 70,738.44 : x
  2. Step 2: Convert to fraction form
    130,354.44/179,889.13 = 70,738.44/x
  3. Step 3: Cross multiply
    130,354.44x = 179,889.13 × 70,738.44
  4. Step 4: Simplify right side
    130,354.44x = 12,725,076,075.47
  5. Step 5: Solve for x
    x = 12,725,076,075.47/130,354.44
  6. Step 6: Final answer
    x = 97,619.05

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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.