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Finding the Fourth Proportional to 156,632.90, 216,151.07 and 88,662.74

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Solution

The fourth proportional to 156,632.90, 216,151.07 and 88,662.74 is: 122,353.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,632.90 : 216,151.07 = 88,662.74 : x
  2. Step 2: Convert to fraction form
    156,632.90/216,151.07 = 88,662.74/x
  3. Step 3: Cross multiply
    156,632.90x = 216,151.07 × 88,662.74
  4. Step 4: Simplify right side
    156,632.90x = 19,164,544,596.06
  5. Step 5: Solve for x
    x = 19,164,544,596.06/156,632.90
  6. Step 6: Final answer
    x = 122,353.26

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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.