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Finding the Fourth Proportional to 71,302.40, 106,953.60 and 58,860.80

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Solution

The fourth proportional to 71,302.40, 106,953.60 and 58,860.80 is: 88,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,302.40 : 106,953.60 = 58,860.80 : x
  2. Step 2: Convert to fraction form
    71,302.40/106,953.60 = 58,860.80/x
  3. Step 3: Cross multiply
    71,302.40x = 106,953.60 × 58,860.80
  4. Step 4: Simplify right side
    71,302.40x = 6,295,374,458.88
  5. Step 5: Solve for x
    x = 6,295,374,458.88/71,302.40
  6. Step 6: Final answer
    x = 88,291.20

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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.