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Finding the Fourth Proportional to 117,907.53, 162,871.61 and 94,200.45

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Solution

The fourth proportional to 117,907.53, 162,871.61 and 94,200.45 is: 130,123.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,907.53 : 162,871.61 = 94,200.45 : x
  2. Step 2: Convert to fraction form
    117,907.53/162,871.61 = 94,200.45/x
  3. Step 3: Cross multiply
    117,907.53x = 162,871.61 × 94,200.45
  4. Step 4: Simplify right side
    117,907.53x = 15,342,578,483.22
  5. Step 5: Solve for x
    x = 15,342,578,483.22/117,907.53
  6. Step 6: Final answer
    x = 130,123.82

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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.