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Finding the Fourth Proportional to 156,999.86, 216,583.62 and 93,292.54

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Solution

The fourth proportional to 156,999.86, 216,583.62 and 93,292.54 is: 128,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,999.86 : 216,583.62 = 93,292.54 : x
  2. Step 2: Convert to fraction form
    156,999.86/216,583.62 = 93,292.54/x
  3. Step 3: Cross multiply
    156,999.86x = 216,583.62 × 93,292.54
  4. Step 4: Simplify right side
    156,999.86x = 20,205,636,032.19
  5. Step 5: Solve for x
    x = 20,205,636,032.19/156,999.86
  6. Step 6: Final answer
    x = 128,698.43

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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.