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Finding the Fourth Proportional to 97,332.80, 146,306.40 and 91,803.20

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Solution

The fourth proportional to 97,332.80, 146,306.40 and 91,803.20 is: 137,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,332.80 : 146,306.40 = 91,803.20 : x
  2. Step 2: Convert to fraction form
    97,332.80/146,306.40 = 91,803.20/x
  3. Step 3: Cross multiply
    97,332.80x = 146,306.40 × 91,803.20
  4. Step 4: Simplify right side
    97,332.80x = 13,431,395,700.48
  5. Step 5: Solve for x
    x = 13,431,395,700.48/97,332.80
  6. Step 6: Final answer
    x = 137,994.55

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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.