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Finding the Fourth Proportional to 85,568.04, 128,354.04 and 29,407.68

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Solution

The fourth proportional to 85,568.04, 128,354.04 and 29,407.68 is: 44,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,568.04 : 128,354.04 = 29,407.68 : x
  2. Step 2: Convert to fraction form
    85,568.04/128,354.04 = 29,407.68/x
  3. Step 3: Cross multiply
    85,568.04x = 128,354.04 × 29,407.68
  4. Step 4: Simplify right side
    85,568.04x = 3,774,594,535.03
  5. Step 5: Solve for x
    x = 3,774,594,535.03/85,568.04
  6. Step 6: Final answer
    x = 44,112.20

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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.