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Finding the Fourth Proportional to 105,347.64, 145,379.88 and 60,023.64

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Solution

The fourth proportional to 105,347.64, 145,379.88 and 60,023.64 is: 82,832.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,347.64 : 145,379.88 = 60,023.64 : x
  2. Step 2: Convert to fraction form
    105,347.64/145,379.88 = 60,023.64/x
  3. Step 3: Cross multiply
    105,347.64x = 145,379.88 × 60,023.64
  4. Step 4: Simplify right side
    105,347.64x = 8,726,229,580.36
  5. Step 5: Solve for x
    x = 8,726,229,580.36/105,347.64
  6. Step 6: Final answer
    x = 82,832.70

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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.