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Finding the Fourth Proportional to 106,785.33, 147,359.52 and 61,477.80

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Solution

The fourth proportional to 106,785.33, 147,359.52 and 61,477.80 is: 84,836.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,785.33 : 147,359.52 = 61,477.80 : x
  2. Step 2: Convert to fraction form
    106,785.33/147,359.52 = 61,477.80/x
  3. Step 3: Cross multiply
    106,785.33x = 147,359.52 × 61,477.80
  4. Step 4: Simplify right side
    106,785.33x = 9,059,339,098.66
  5. Step 5: Solve for x
    x = 9,059,339,098.66/106,785.33
  6. Step 6: Final answer
    x = 84,836.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.