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Finding the Fourth Proportional to 118,019.85, 162,869.25 and 64,304.85

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Solution

The fourth proportional to 118,019.85, 162,869.25 and 64,304.85 is: 88,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,019.85 : 162,869.25 = 64,304.85 : x
  2. Step 2: Convert to fraction form
    118,019.85/162,869.25 = 64,304.85/x
  3. Step 3: Cross multiply
    118,019.85x = 162,869.25 × 64,304.85
  4. Step 4: Simplify right side
    118,019.85x = 10,473,282,690.86
  5. Step 5: Solve for x
    x = 10,473,282,690.86/118,019.85
  6. Step 6: Final answer
    x = 88,741.70

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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.