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Finding the Fourth Proportional to 153,571.62, 211,946.04 and 85,594.80

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Solution

The fourth proportional to 153,571.62, 211,946.04 and 85,594.80 is: 118,130.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,571.62 : 211,946.04 = 85,594.80 : x
  2. Step 2: Convert to fraction form
    153,571.62/211,946.04 = 85,594.80/x
  3. Step 3: Cross multiply
    153,571.62x = 211,946.04 × 85,594.80
  4. Step 4: Simplify right side
    153,571.62x = 18,141,478,904.59
  5. Step 5: Solve for x
    x = 18,141,478,904.59/153,571.62
  6. Step 6: Final answer
    x = 118,130.41

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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.