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Finding the Fourth Proportional to 99,046.40, 148,662.40 and 52,332.80

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Solution

The fourth proportional to 99,046.40, 148,662.40 and 52,332.80 is: 78,548.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,046.40 : 148,662.40 = 52,332.80 : x
  2. Step 2: Convert to fraction form
    99,046.40/148,662.40 = 52,332.80/x
  3. Step 3: Cross multiply
    99,046.40x = 148,662.40 × 52,332.80
  4. Step 4: Simplify right side
    99,046.40x = 7,779,919,646.72
  5. Step 5: Solve for x
    x = 7,779,919,646.72/99,046.40
  6. Step 6: Final answer
    x = 78,548.23

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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.