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Finding the Fourth Proportional to 114,509.52, 158,031.54 and 63,530.28

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Solution

The fourth proportional to 114,509.52, 158,031.54 and 63,530.28 is: 87,676.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,509.52 : 158,031.54 = 63,530.28 : x
  2. Step 2: Convert to fraction form
    114,509.52/158,031.54 = 63,530.28/x
  3. Step 3: Cross multiply
    114,509.52x = 158,031.54 × 63,530.28
  4. Step 4: Simplify right side
    114,509.52x = 10,039,787,985.03
  5. Step 5: Solve for x
    x = 10,039,787,985.03/114,509.52
  6. Step 6: Final answer
    x = 87,676.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.