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Finding the Fourth Proportional to 104,569.92, 156,874.32 and 42,284.16

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Solution

The fourth proportional to 104,569.92, 156,874.32 and 42,284.16 is: 63,434.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,569.92 : 156,874.32 = 42,284.16 : x
  2. Step 2: Convert to fraction form
    104,569.92/156,874.32 = 42,284.16/x
  3. Step 3: Cross multiply
    104,569.92x = 156,874.32 × 42,284.16
  4. Step 4: Simplify right side
    104,569.92x = 6,633,298,846.77
  5. Step 5: Solve for x
    x = 6,633,298,846.77/104,569.92
  6. Step 6: Final answer
    x = 63,434.10

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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.