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Finding the Fourth Proportional to 208,051.50, 287,150.01 and 118,627.50

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Solution

The fourth proportional to 208,051.50, 287,150.01 and 118,627.50 is: 163,728.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,051.50 : 287,150.01 = 118,627.50 : x
  2. Step 2: Convert to fraction form
    208,051.50/287,150.01 = 118,627.50/x
  3. Step 3: Cross multiply
    208,051.50x = 287,150.01 × 118,627.50
  4. Step 4: Simplify right side
    208,051.50x = 34,063,887,811.28
  5. Step 5: Solve for x
    x = 34,063,887,811.28/208,051.50
  6. Step 6: Final answer
    x = 163,728.15

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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.