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Finding the Fourth Proportional to 105,751.96, 145,935.20 and 58,004.88

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Solution

The fourth proportional to 105,751.96, 145,935.20 and 58,004.88 is: 80,045.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,751.96 : 145,935.20 = 58,004.88 : x
  2. Step 2: Convert to fraction form
    105,751.96/145,935.20 = 58,004.88/x
  3. Step 3: Cross multiply
    105,751.96x = 145,935.20 × 58,004.88
  4. Step 4: Simplify right side
    105,751.96x = 8,464,953,763.78
  5. Step 5: Solve for x
    x = 8,464,953,763.78/105,751.96
  6. Step 6: Final answer
    x = 80,045.36

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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.