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Finding the Fourth Proportional to 105,595.92, 145,722.48 and 57,852.32

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Solution

The fourth proportional to 105,595.92, 145,722.48 and 57,852.32 is: 79,836.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,595.92 : 145,722.48 = 57,852.32 : x
  2. Step 2: Convert to fraction form
    105,595.92/145,722.48 = 57,852.32/x
  3. Step 3: Cross multiply
    105,595.92x = 145,722.48 × 57,852.32
  4. Step 4: Simplify right side
    105,595.92x = 8,430,383,544.15
  5. Step 5: Solve for x
    x = 8,430,383,544.15/105,595.92
  6. Step 6: Final answer
    x = 79,836.26

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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.