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Finding the Fourth Proportional to 118,601.84, 163,670.42 and 64,886.90

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Solution

The fourth proportional to 118,601.84, 163,670.42 and 64,886.90 is: 89,543.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,601.84 : 163,670.42 = 64,886.90 : x
  2. Step 2: Convert to fraction form
    118,601.84/163,670.42 = 64,886.90/x
  3. Step 3: Cross multiply
    118,601.84x = 163,670.42 × 64,886.90
  4. Step 4: Simplify right side
    118,601.84x = 10,620,065,032.71
  5. Step 5: Solve for x
    x = 10,620,065,032.71/118,601.84
  6. Step 6: Final answer
    x = 89,543.85

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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.