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Finding the Fourth Proportional to 173,628.40, 260,442.60 and 55,298.80

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Solution

The fourth proportional to 173,628.40, 260,442.60 and 55,298.80 is: 82,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,628.40 : 260,442.60 = 55,298.80 : x
  2. Step 2: Convert to fraction form
    173,628.40/260,442.60 = 55,298.80/x
  3. Step 3: Cross multiply
    173,628.40x = 260,442.60 × 55,298.80
  4. Step 4: Simplify right side
    173,628.40x = 14,402,163,248.88
  5. Step 5: Solve for x
    x = 14,402,163,248.88/173,628.40
  6. Step 6: Final answer
    x = 82,948.20

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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.