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Finding the Fourth Proportional to 71,329.40, 106,994.10 and 59,924.60

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Solution

The fourth proportional to 71,329.40, 106,994.10 and 59,924.60 is: 89,886.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,329.40 : 106,994.10 = 59,924.60 : x
  2. Step 2: Convert to fraction form
    71,329.40/106,994.10 = 59,924.60/x
  3. Step 3: Cross multiply
    71,329.40x = 106,994.10 × 59,924.60
  4. Step 4: Simplify right side
    71,329.40x = 6,411,578,644.86
  5. Step 5: Solve for x
    x = 6,411,578,644.86/71,329.40
  6. Step 6: Final answer
    x = 89,886.90

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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.