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Finding the Fourth Proportional to 82,866.57, 124,305.93 and 35,435.40

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Solution

The fourth proportional to 82,866.57, 124,305.93 and 35,435.40 is: 53,155.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,866.57 : 124,305.93 = 35,435.40 : x
  2. Step 2: Convert to fraction form
    82,866.57/124,305.93 = 35,435.40/x
  3. Step 3: Cross multiply
    82,866.57x = 124,305.93 × 35,435.40
  4. Step 4: Simplify right side
    82,866.57x = 4,404,830,351.92
  5. Step 5: Solve for x
    x = 4,404,830,351.92/82,866.57
  6. Step 6: Final answer
    x = 53,155.70

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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.