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Finding the Fourth Proportional to 118,803.72, 163,954.53 and 67,830.24

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Solution

The fourth proportional to 118,803.72, 163,954.53 and 67,830.24 is: 93,608.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,803.72 : 163,954.53 = 67,830.24 : x
  2. Step 2: Convert to fraction form
    118,803.72/163,954.53 = 67,830.24/x
  3. Step 3: Cross multiply
    118,803.72x = 163,954.53 × 67,830.24
  4. Step 4: Simplify right side
    118,803.72x = 11,121,075,118.99
  5. Step 5: Solve for x
    x = 11,121,075,118.99/118,803.72
  6. Step 6: Final answer
    x = 93,608.81

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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.