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Finding the Fourth Proportional to 99,058.69, 148,631.91 and 40,009.69

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Solution

The fourth proportional to 99,058.69, 148,631.91 and 40,009.69 is: 60,032.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,058.69 : 148,631.91 = 40,009.69 : x
  2. Step 2: Convert to fraction form
    99,058.69/148,631.91 = 40,009.69/x
  3. Step 3: Cross multiply
    99,058.69x = 148,631.91 × 40,009.69
  4. Step 4: Simplify right side
    99,058.69x = 5,946,716,643.21
  5. Step 5: Solve for x
    x = 5,946,716,643.21/99,058.69
  6. Step 6: Final answer
    x = 60,032.26

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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.