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Finding the Fourth Proportional to 156,590.88, 216,095.16 and 84,970.92

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Solution

The fourth proportional to 156,590.88, 216,095.16 and 84,970.92 is: 117,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,590.88 : 216,095.16 = 84,970.92 : x
  2. Step 2: Convert to fraction form
    156,590.88/216,095.16 = 84,970.92/x
  3. Step 3: Cross multiply
    156,590.88x = 216,095.16 × 84,970.92
  4. Step 4: Simplify right side
    156,590.88x = 18,361,804,552.75
  5. Step 5: Solve for x
    x = 18,361,804,552.75/156,590.88
  6. Step 6: Final answer
    x = 117,259.73

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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.