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Finding the Fourth Proportional to 60,412.30, 83,335.35 and 56,135.86

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Solution

The fourth proportional to 60,412.30, 83,335.35 and 56,135.86 is: 77,436.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,412.30 : 83,335.35 = 56,135.86 : x
  2. Step 2: Convert to fraction form
    60,412.30/83,335.35 = 56,135.86/x
  3. Step 3: Cross multiply
    60,412.30x = 83,335.35 × 56,135.86
  4. Step 4: Simplify right side
    60,412.30x = 4,678,101,540.65
  5. Step 5: Solve for x
    x = 4,678,101,540.65/60,412.30
  6. Step 6: Final answer
    x = 77,436.24

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