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Finding the Fourth Proportional to 105,594.66, 145,720.90 and 57,848.94

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Solution

The fourth proportional to 105,594.66, 145,720.90 and 57,848.94 is: 79,831.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,594.66 : 145,720.90 = 57,848.94 : x
  2. Step 2: Convert to fraction form
    105,594.66/145,720.90 = 57,848.94/x
  3. Step 3: Cross multiply
    105,594.66x = 145,720.90 × 57,848.94
  4. Step 4: Simplify right side
    105,594.66x = 8,429,799,600.85
  5. Step 5: Solve for x
    x = 8,429,799,600.85/105,594.66
  6. Step 6: Final answer
    x = 79,831.68

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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.