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Finding the Fourth Proportional to 97,605.60, 146,084.40 and 70,875.60

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Solution

The fourth proportional to 97,605.60, 146,084.40 and 70,875.60 is: 106,078.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,605.60 : 146,084.40 = 70,875.60 : x
  2. Step 2: Convert to fraction form
    97,605.60/146,084.40 = 70,875.60/x
  3. Step 3: Cross multiply
    97,605.60x = 146,084.40 × 70,875.60
  4. Step 4: Simplify right side
    97,605.60x = 10,353,819,500.64
  5. Step 5: Solve for x
    x = 10,353,819,500.64/97,605.60
  6. Step 6: Final answer
    x = 106,078.13

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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.