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Finding the Fourth Proportional to 153,851.99, 230,881.19 and 54,012.51

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Solution

The fourth proportional to 153,851.99, 230,881.19 and 54,012.51 is: 81,055.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,851.99 : 230,881.19 = 54,012.51 : x
  2. Step 2: Convert to fraction form
    153,851.99/230,881.19 = 54,012.51/x
  3. Step 3: Cross multiply
    153,851.99x = 230,881.19 × 54,012.51
  4. Step 4: Simplify right side
    153,851.99x = 12,470,472,313.62
  5. Step 5: Solve for x
    x = 12,470,472,313.62/153,851.99
  6. Step 6: Final answer
    x = 81,055.00

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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.