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Finding the Fourth Proportional to 118,509.54, 163,554.05 and 67,529.20

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Solution

The fourth proportional to 118,509.54, 163,554.05 and 67,529.20 is: 93,196.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,509.54 : 163,554.05 = 67,529.20 : x
  2. Step 2: Convert to fraction form
    118,509.54/163,554.05 = 67,529.20/x
  3. Step 3: Cross multiply
    118,509.54x = 163,554.05 × 67,529.20
  4. Step 4: Simplify right side
    118,509.54x = 11,044,673,913.20
  5. Step 5: Solve for x
    x = 11,044,673,913.20/118,509.54
  6. Step 6: Final answer
    x = 93,196.50

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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.