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Finding the Fourth Proportional to 113,907.60, 170,845.20 and 39,031.20

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Solution

The fourth proportional to 113,907.60, 170,845.20 and 39,031.20 is: 58,541.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,907.60 : 170,845.20 = 39,031.20 : x
  2. Step 2: Convert to fraction form
    113,907.60/170,845.20 = 39,031.20/x
  3. Step 3: Cross multiply
    113,907.60x = 170,845.20 × 39,031.20
  4. Step 4: Simplify right side
    113,907.60x = 6,668,293,170.24
  5. Step 5: Solve for x
    x = 6,668,293,170.24/113,907.60
  6. Step 6: Final answer
    x = 58,541.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.