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Finding the Fourth Proportional to 118,483.08, 163,509.78 and 70,763.95

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Solution

The fourth proportional to 118,483.08, 163,509.78 and 70,763.95 is: 97,656.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,483.08 : 163,509.78 = 70,763.95 : x
  2. Step 2: Convert to fraction form
    118,483.08/163,509.78 = 70,763.95/x
  3. Step 3: Cross multiply
    118,483.08x = 163,509.78 × 70,763.95
  4. Step 4: Simplify right side
    118,483.08x = 11,570,597,896.43
  5. Step 5: Solve for x
    x = 11,570,597,896.43/118,483.08
  6. Step 6: Final answer
    x = 97,656.12

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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.