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Finding the Fourth Proportional to 59,392.80, 89,089.20 and 56,768.40

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Solution

The fourth proportional to 59,392.80, 89,089.20 and 56,768.40 is: 85,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,392.80 : 89,089.20 = 56,768.40 : x
  2. Step 2: Convert to fraction form
    59,392.80/89,089.20 = 56,768.40/x
  3. Step 3: Cross multiply
    59,392.80x = 89,089.20 × 56,768.40
  4. Step 4: Simplify right side
    59,392.80x = 5,057,451,341.28
  5. Step 5: Solve for x
    x = 5,057,451,341.28/59,392.80
  6. Step 6: Final answer
    x = 85,152.60

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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.