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Finding the Fourth Proportional to 118,305.92, 163,261.32 and 64,590.93

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Solution

The fourth proportional to 118,305.92, 163,261.32 and 64,590.93 is: 89,135.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,305.92 : 163,261.32 = 64,590.93 : x
  2. Step 2: Convert to fraction form
    118,305.92/163,261.32 = 64,590.93/x
  3. Step 3: Cross multiply
    118,305.92x = 163,261.32 × 64,590.93
  4. Step 4: Simplify right side
    118,305.92x = 10,545,200,491.83
  5. Step 5: Solve for x
    x = 10,545,200,491.83/118,305.92
  6. Step 6: Final answer
    x = 89,135.02

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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.