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Finding the Fourth Proportional to 99,240.65, 148,860.72 and 43,073.46

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Solution

The fourth proportional to 99,240.65, 148,860.72 and 43,073.46 is: 64,610.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,240.65 : 148,860.72 = 43,073.46 : x
  2. Step 2: Convert to fraction form
    99,240.65/148,860.72 = 43,073.46/x
  3. Step 3: Cross multiply
    99,240.65x = 148,860.72 × 43,073.46
  4. Step 4: Simplify right side
    99,240.65x = 6,411,946,268.49
  5. Step 5: Solve for x
    x = 6,411,946,268.49/99,240.65
  6. Step 6: Final answer
    x = 64,610.08

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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.