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Finding the Fourth Proportional to 70,373.54, 105,631.44 and 62,420.46

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Solution

The fourth proportional to 70,373.54, 105,631.44 and 62,420.46 is: 93,693.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,373.54 : 105,631.44 = 62,420.46 : x
  2. Step 2: Convert to fraction form
    70,373.54/105,631.44 = 62,420.46/x
  3. Step 3: Cross multiply
    70,373.54x = 105,631.44 × 62,420.46
  4. Step 4: Simplify right side
    70,373.54x = 6,593,563,075.26
  5. Step 5: Solve for x
    x = 6,593,563,075.26/70,373.54
  6. Step 6: Final answer
    x = 93,693.79

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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.