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Finding the Fourth Proportional to 118,239.50, 163,170.60 and 88,050.80

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Solution

The fourth proportional to 118,239.50, 163,170.60 and 88,050.80 is: 121,510.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,239.50 : 163,170.60 = 88,050.80 : x
  2. Step 2: Convert to fraction form
    118,239.50/163,170.60 = 88,050.80/x
  3. Step 3: Cross multiply
    118,239.50x = 163,170.60 × 88,050.80
  4. Step 4: Simplify right side
    118,239.50x = 14,367,301,866.48
  5. Step 5: Solve for x
    x = 14,367,301,866.48/118,239.50
  6. Step 6: Final answer
    x = 121,510.17

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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.