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Finding the Fourth Proportional to 70,558.96, 105,782.95 and 48,304.89

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Solution

The fourth proportional to 70,558.96, 105,782.95 and 48,304.89 is: 72,419.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,558.96 : 105,782.95 = 48,304.89 : x
  2. Step 2: Convert to fraction form
    70,558.96/105,782.95 = 48,304.89/x
  3. Step 3: Cross multiply
    70,558.96x = 105,782.95 × 48,304.89
  4. Step 4: Simplify right side
    70,558.96x = 5,109,833,763.63
  5. Step 5: Solve for x
    x = 5,109,833,763.63/70,558.96
  6. Step 6: Final answer
    x = 72,419.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.