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Finding the Fourth Proportional to 173,423.60, 260,135.40 and 89,442.80

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Solution

The fourth proportional to 173,423.60, 260,135.40 and 89,442.80 is: 134,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,423.60 : 260,135.40 = 89,442.80 : x
  2. Step 2: Convert to fraction form
    173,423.60/260,135.40 = 89,442.80/x
  3. Step 3: Cross multiply
    173,423.60x = 260,135.40 × 89,442.80
  4. Step 4: Simplify right side
    173,423.60x = 23,267,238,555.12
  5. Step 5: Solve for x
    x = 23,267,238,555.12/173,423.60
  6. Step 6: Final answer
    x = 134,164.20

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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.