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Finding the Fourth Proportional to 118,149.95, 163,056.63 and 67,178.67

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Solution

The fourth proportional to 118,149.95, 163,056.63 and 67,178.67 is: 92,712.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,149.95 : 163,056.63 = 67,178.67 : x
  2. Step 2: Convert to fraction form
    118,149.95/163,056.63 = 67,178.67/x
  3. Step 3: Cross multiply
    118,149.95x = 163,056.63 × 67,178.67
  4. Step 4: Simplify right side
    118,149.95x = 10,953,927,538.08
  5. Step 5: Solve for x
    x = 10,953,927,538.08/118,149.95
  6. Step 6: Final answer
    x = 92,712.08

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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.