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Finding the Fourth Proportional to 97,664.80, 146,518.80 and 45,061.60

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Solution

The fourth proportional to 97,664.80, 146,518.80 and 45,061.60 is: 67,602.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,664.80 : 146,518.80 = 45,061.60 : x
  2. Step 2: Convert to fraction form
    97,664.80/146,518.80 = 45,061.60/x
  3. Step 3: Cross multiply
    97,664.80x = 146,518.80 × 45,061.60
  4. Step 4: Simplify right side
    97,664.80x = 6,602,371,558.08
  5. Step 5: Solve for x
    x = 6,602,371,558.08/97,664.80
  6. Step 6: Final answer
    x = 67,602.37

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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.