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Finding the Fourth Proportional to 173,930.92, 260,946.19 and 85,210.40

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Solution

The fourth proportional to 173,930.92, 260,946.19 and 85,210.40 is: 127,840.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,930.92 : 260,946.19 = 85,210.40 : x
  2. Step 2: Convert to fraction form
    173,930.92/260,946.19 = 85,210.40/x
  3. Step 3: Cross multiply
    173,930.92x = 260,946.19 × 85,210.40
  4. Step 4: Simplify right side
    173,930.92x = 22,235,329,228.38
  5. Step 5: Solve for x
    x = 22,235,329,228.38/173,930.92
  6. Step 6: Final answer
    x = 127,840.01

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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.