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Finding the Fourth Proportional to 118,118.88, 163,000.50 and 64,404.95

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Solution

The fourth proportional to 118,118.88, 163,000.50 and 64,404.95 is: 88,876.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,118.88 : 163,000.50 = 64,404.95 : x
  2. Step 2: Convert to fraction form
    118,118.88/163,000.50 = 64,404.95/x
  3. Step 3: Cross multiply
    118,118.88x = 163,000.50 × 64,404.95
  4. Step 4: Simplify right side
    118,118.88x = 10,498,038,237.47
  5. Step 5: Solve for x
    x = 10,498,038,237.47/118,118.88
  6. Step 6: Final answer
    x = 88,876.89

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1.5x scale

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.