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Finding the Fourth Proportional to 105,798.15, 145,992.15 and 60,467.13

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Solution

The fourth proportional to 105,798.15, 145,992.15 and 60,467.13 is: 83,439.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,798.15 : 145,992.15 = 60,467.13 : x
  2. Step 2: Convert to fraction form
    105,798.15/145,992.15 = 60,467.13/x
  3. Step 3: Cross multiply
    105,798.15x = 145,992.15 × 60,467.13
  4. Step 4: Simplify right side
    105,798.15x = 8,827,726,313.03
  5. Step 5: Solve for x
    x = 8,827,726,313.03/105,798.15
  6. Step 6: Final answer
    x = 83,439.33

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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.