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Finding the Fourth Proportional to 156,996, 216,654.48 and 89,932.32

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Solution

The fourth proportional to 156,996, 216,654.48 and 89,932.32 is: 124,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,996 : 216,654.48 = 89,932.32 : x
  2. Step 2: Convert to fraction form
    156,996/216,654.48 = 89,932.32/x
  3. Step 3: Cross multiply
    156,996x = 216,654.48 × 89,932.32
  4. Step 4: Simplify right side
    156,996x = 19,484,240,024.79
  5. Step 5: Solve for x
    x = 19,484,240,024.79/156,996
  6. Step 6: Final answer
    x = 124,106.60

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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.