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Finding the Fourth Proportional to 112,644.80, 168,967.20 and 29,547.20

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Solution

The fourth proportional to 112,644.80, 168,967.20 and 29,547.20 is: 44,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,644.80 : 168,967.20 = 29,547.20 : x
  2. Step 2: Convert to fraction form
    112,644.80/168,967.20 = 29,547.20/x
  3. Step 3: Cross multiply
    112,644.80x = 168,967.20 × 29,547.20
  4. Step 4: Simplify right side
    112,644.80x = 4,992,507,651.84
  5. Step 5: Solve for x
    x = 4,992,507,651.84/112,644.80
  6. Step 6: Final answer
    x = 44,320.80

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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.