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Finding the Fourth Proportional to 97,666.80, 146,597.40 and 47,803.20

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Solution

The fourth proportional to 97,666.80, 146,597.40 and 47,803.20 is: 71,752.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,666.80 : 146,597.40 = 47,803.20 : x
  2. Step 2: Convert to fraction form
    97,666.80/146,597.40 = 47,803.20/x
  3. Step 3: Cross multiply
    97,666.80x = 146,597.40 × 47,803.20
  4. Step 4: Simplify right side
    97,666.80x = 7,007,824,831.68
  5. Step 5: Solve for x
    x = 7,007,824,831.68/97,666.80
  6. Step 6: Final answer
    x = 71,752.37

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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.