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Finding the Fourth Proportional to 118,047.39, 162,905.40 and 64,332.39

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Solution

The fourth proportional to 118,047.39, 162,905.40 and 64,332.39 is: 88,778.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,047.39 : 162,905.40 = 64,332.39 : x
  2. Step 2: Convert to fraction form
    118,047.39/162,905.40 = 64,332.39/x
  3. Step 3: Cross multiply
    118,047.39x = 162,905.40 × 64,332.39
  4. Step 4: Simplify right side
    118,047.39x = 10,480,093,725.91
  5. Step 5: Solve for x
    x = 10,480,093,725.91/118,047.39
  6. Step 6: Final answer
    x = 88,778.70

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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.