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Finding the Fourth Proportional to 118,798.43, 163,940.47 and 64,349.56

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Solution

The fourth proportional to 118,798.43, 163,940.47 and 64,349.56 is: 88,801.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,798.43 : 163,940.47 = 64,349.56 : x
  2. Step 2: Convert to fraction form
    118,798.43/163,940.47 = 64,349.56/x
  3. Step 3: Cross multiply
    118,798.43x = 163,940.47 × 64,349.56
  4. Step 4: Simplify right side
    118,798.43x = 10,549,497,154.74
  5. Step 5: Solve for x
    x = 10,549,497,154.74/118,798.43
  6. Step 6: Final answer
    x = 88,801.66

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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.