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Finding the Fourth Proportional to 156,652.90, 216,184.92 and 85,032.84

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Solution

The fourth proportional to 156,652.90, 216,184.92 and 85,032.84 is: 117,347.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,652.90 : 216,184.92 = 85,032.84 : x
  2. Step 2: Convert to fraction form
    156,652.90/216,184.92 = 85,032.84/x
  3. Step 3: Cross multiply
    156,652.90x = 216,184.92 × 85,032.84
  4. Step 4: Simplify right side
    156,652.90x = 18,382,817,712.77
  5. Step 5: Solve for x
    x = 18,382,817,712.77/156,652.90
  6. Step 6: Final answer
    x = 117,347.45

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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.