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Finding the Fourth Proportional to 118,332.87, 163,300.14 and 64,618.26

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Solution

The fourth proportional to 118,332.87, 163,300.14 and 64,618.26 is: 89,173.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,332.87 : 163,300.14 = 64,618.26 : x
  2. Step 2: Convert to fraction form
    118,332.87/163,300.14 = 64,618.26/x
  3. Step 3: Cross multiply
    118,332.87x = 163,300.14 × 64,618.26
  4. Step 4: Simplify right side
    118,332.87x = 10,552,170,904.56
  5. Step 5: Solve for x
    x = 10,552,170,904.56/118,332.87
  6. Step 6: Final answer
    x = 89,173.62

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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.