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Finding the Fourth Proportional to 153,291.51, 229,871.64 and 53,422.15

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Solution

The fourth proportional to 153,291.51, 229,871.64 and 53,422.15 is: 80,110.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,291.51 : 229,871.64 = 53,422.15 : x
  2. Step 2: Convert to fraction form
    153,291.51/229,871.64 = 53,422.15/x
  3. Step 3: Cross multiply
    153,291.51x = 229,871.64 × 53,422.15
  4. Step 4: Simplify right side
    153,291.51x = 12,280,237,232.83
  5. Step 5: Solve for x
    x = 12,280,237,232.83/153,291.51
  6. Step 6: Final answer
    x = 80,110.35

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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.